Microformats Wiki - User contributions [en]

events/2006-09-30-barcampmilwaukee

2006-10-03T17:25:52Z

Raster: updated

<h1>BarCampMilwaukee</h1>

One of several microformats [[events]] and [[presentations]].

__TOC__

== Details ==

;Date: Sunday, October 1, 2006
;Time: 9am Sunday CST
;Location: [http://www.bucketworks.org/Main/FindUs Bucketworks] 1319 N. Martin Luther King Jr. Drive, Milwaukee, Wisconsin, USA.
;URLs: [http://barcampmilwaukee.com/ BarCampMilwaukee] [http://barcampmilwaukee.com/index.php?title=Microformats Microformats Session]

== Summary ==

Scott Reynen provided an overview of microformats. Pete Prodoehl assisted a bit, and we argued with Justin Kruger (a developer) over Microformats vs. XML/RDF...

== Attending ==

* [http://makedatamakesense/ Scott Reynen]
* [http://rasterweb.net/raster/ Pete Prodoehl]
* [http://jdavid.net/ Justin Kruger]

== Photos ==

See the [http://www.flickr.com/photos/tags/barcampmilwaukee/ barcampmilwaukee Flickr tag].

events/2006-09-30-barcampmilwaukee

2006-09-27T18:20:55Z

Raster: /* Attending */ added my name...

<h1>BarCampMilwaukee</h1>

One of several microformats [[events]] and [[presentations]].

__TOC__

== Details ==

;Date: Saturday, September 30 and Sunday, October 1, 2006
;Time: 10am Saturday to 5pm Sunday CST
;Location: [http://www.bucketworks.org/Main/FindUs Bucketworks] 1319 N. Martin Luther King Jr. Drive, Milwaukee, Wisconsin, USA.
;URLs: [http://barcampmilwaukee.com/ BarCampMilwaukee]

== Summary ==
Andrew Shell will be providing an overview of microformats. Scott Reynen will be discussing [[geo ]] in depth.

== Attending ==

* [http://blog.andrewshell.org/ Andrew Shell]
* [http://makedatamakesense/ Scott Reynen]
* [http://rasterweb.net/raster/ Pete Prodoehl]
* ...
* add yourself
* ...

== Photos ==

See the [http://www.flickr.com/photos/tags/barcampmilwaukee/ barcampmilwaukee Flickr tag].

hcard

2006-09-06T11:46:43Z

Raster: /* Examples in the wild */ added rasterweb.net/portfolio link

<h1>hCard</h1>

hCard is a simple, open, distributed format for representing people, companies, organizations, and places, using a 1:1 representation of the properties and values of the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in [[semantic-xhtml|semantic XHTML]]. hCard is one of several open [[microformats|microformat]] standards suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML.

Want to get started with writing an [[hcard|hCard]]? Use the [http://microformats.org/code/hcard/creator hCard creator] to write up some contact information and publish it, or follow the [[hcard-authoring|hCard authoring tips]] to add hCard markup to your current contact page.

__TOC__

== Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to: my good friend [http://vadim.com/ Vadim] who introduced me to vCard ''many'' years ago, and if I'd only paid more attention then, perhaps I could have helped a lot of people avoid wasting a lot of time reinventing various standards wheels.

== Introduction ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly interoperably implemented (e.g. Apple's "Address Book" application built into MacOSX).

In addition, many bloggers identify themselves by name and discuss their friends and family. With just a tad bit of structure, bloggers can discuss people in their blog(s) in such a way that spiders and other aggregators can retrieve this information, automatically convert them to vCards, and use them in any vCard application or service.

This specification introduces the '''hCard''' format, which uses a 1:1 representation of the properties and values of the aforementioned vCard standard, in semantic XHTML. Bloggers can both embed hCards directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCard enables applications to retrieve information directly from web pages without having to reference a separate file.

Use the [http://microformats.org/code/hcard/creator hCard creator] and copy the HTML code it generates to your blog or website to publish your contact info.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== In General ===
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) forms the basis of hCard.

The basic format of hCard is to use vCard object/property names in lower-case for class names, and to map the nesting of vCard objects directly into nested XHTML elements.

=== More Semantic Equivalents ===
However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in vCard becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vcard"</code> in hCard.
* Similarly, <code>EMAIL</code> in vCard becomes <code><nowiki><a class="email" href="mailto:...">...</a></nowiki></code>
* <code>PHOTO</code> in vCard becomes <code><img class="photo" src="..." alt="Photo of ..." /></code> or <code><object class="photo" data="..." type="...">Photo of ...</object></code>
* <code>UID</code> in vCard simply becomes another semantic applied to a specific URL (or EMAIL) for an hCard.

=== Singular vs. Plural Properties ===

For properties which are singular (e.g. "N" and "FN"), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL"), each class instance should create a instance of that property.

==== Singular properties ====

Singular properties: "FN", "N", "BDAY", "TZ", "GEO", "SORT-STRING", "UID", "CLASS".

All other properties are plural. This list has been derived by analyzing the semantics of the individual properties in vCard RFC2426 and determining logically that they MUST be singular per their semantics. See [[hcard-singular-properties]] for explanations.

==== Plural Properties Singularized ====

Since plural property names become their singular equivalents, even if the original plural property permitted only a single value with multiple components, those multiple components are represented each with their own singularly named property and the the property is effectively multivalued and subject to the above treatment of multivalued properties.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

If an <code><a></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>href="..."</code> attribute provides the property value.
# For other properties, the element's content is the value of the property.

If an <code><img></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
# For other properties, the <code><img></code> element's '<code>alt</code>' attribute is the value of the property.

If an <code><object></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>data="..."</code> attribute provides the property value.
# For other properties, the element's content is the value of the property.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. This typically occurs when a property has a subtype, like TEL. For this purpose, the special class name "<code>value</code>" is introduced to excerpt out the subset of the element that is the value of the property. E.g. here is an hCard fragment for marking up a home phone number:

<pre><nowiki>
<span class="tel">
<span class="type">home</span>:
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

This hCard fragment could be displayed as:

home: +1.415.555.1212

=== Property Exceptions ===

vCard has several properties which either do not make sense on, or are already implied within the context of a web page. This section explains what to (not) do with them.

# '''NAME''', '''PROFILE''', '''SOURCE''', '''PRODID''', '''VERSION''' properties as defined in Sections 2.1.2, 2.1.3, 2.1.4, 3.6.3, 3.6.9 of RFC 2426. Content publishers MUST NOT use these properties in their hCards, and as such, hCard consumers/parsers MUST IGNORE these properties if they are found within an hCard. Instead. hCard to vCard converters SHOULD use the title of the page where the hCard is found (e.g. the <code><title></code> element in (X)HTML documents) to construct the NAME property, MAY output a PROFILE value of "<code>VCARD</code>" per RFC 2426, SHOULD use the URL of the page where the hCard is found to construct the SOURCE property (e.g. perhaps as a parameter to a URL/service that converts hCards to vCards), for an output vCard stream (e.g. a .vcf file). Only services/applications that output actual vCards should write the PRODID property, with the product identifier for said service/application. Similarly only such services/applications should write the VERSION property, with the value "3.0" (without quotes) per RFC2426 Section 3.6.9.

=== Organization Contact Info ===

If the "FN" and "ORG" properties have the exact same value (typically because they are set on the same element, e.g. class="fn org"), then the hCard represents contact information for a company or organization and should be treated as such. In this case the author MUST also NOT set the "N" property, or set it (and any sub-properties) explicitly to the empty string "". Thus parsers should handle the missing "N" property in this case by implying empty values for all the "N" sub-properties.

=== Implied "n" Optimization ===

Although vCard requires that the "N" property be present, the authors of the vCard specification (RFC 2426) themselves do not include "N" properties in their vCards near the end of the spec (p.38). This apparent contradiction can be resolved by simply allowing the "FN" property to imply "N" property values in typical cases provided in the spec. We do so explicitly in hCard.

If "FN" and "ORG" are not the same (see previous section), and the value of the "FN" property is exactly two words (separated by whitespace), and there is no explicit "N" property, then the "N" property is inferred from the "FN" property. For "FN"s with either one word see below, and for three or more, the author MUST explicitly markup the "N", except for the organization contact info case, [http://microformats.org/wiki/hcard#Organization_Contact_Info see above] for that.

# The content of "FN" is broken into two "words" separated by whitespace.
# The ''first'' word of the "FN" is interpreted as the "given-name" for the "N" property.
# The ''second/last'' word of the "FN" is interpreted as the "family-name" for the "N" property.
# Exception: If the first word ends in a "," comma OR if the second word is a single character (optionally followed by a period "."), then the first word (minus the comma at the end if any) is interpreted as the "family-name" and the second word is interpreted as the "given-name".

This allows simplification in the typical case of people stating:
* given-name (space) family-name
* family-name (comma) given-name
* family-name (comma) given-name-first-initial
* family-name (space) given-name-first-initial (optional period)

=== Implied "nickname" Optimization ===

Due to the prevalence of the use of nicknames/handles/usernames on the Web in actual content published on the Web (e.g. authors of [[hReview|reviews]]), hCard also has an implied "nickname" optimization to handle this.

Similar to the implied "n" optimization, if "FN" and "ORG" are not the same, and the value of the "FN" property is exactly one word, and there is no explicit "N" property, then:

# The content of the "FN" is treated as a "nickname" property value.
# Parsers should handle the missing "N" property by implying empty values for all the "N" sub-properties.

Note: the hCard may have additional explicit "nickname" property values in addition to the implied nickname.

=== Implied "organization-name" Optimization ===

The "ORG" property has two subproperties, organization-name and organization-unit. Very often authors only publish the organization-name. Thus if an "ORG" property has no "organization-name" inside it, then its entire contents MUST be treated as the "organization-name".

=== Tags as Categories ===

Categories in hCard can optionally be represented by tags with rel-tag. When a category property is a rel-tag, the tag (as defined by rel-tag) is used for that category.

=== Root Class Name ===

The root class name for an hCard is "vcard".

=== Property List ===

This is the list of properties (and subproperties, in parentheses, like this) in hCard, taken from vCard:

* fn, n (family-name, given-name, additional-name, honorific-prefix, honorific-suffix), nickname, sort-string
* url, email (type, value), tel (type, value)
* adr (post-office-box, extended-address, street-address, locality, region, postal-code, country-name, type, value), label
* geo (latitude, longitude), tz
* photo, logo, sound, bday
* title, role, org (organization-name, organization-unit)
* category, note
* class, key, mailer, uid, rev
==== type subproperty values ====

The 'type' subproperty in particular takes different values depending on which property it is a subproperty of. These 'type' subproperty values are case-INSENSITIVE, meaning "Home" is the same as "home", as well as multivalued, e.g. a tel can be home and preferred:
<pre><nowiki>
<span class="tel"><span class="type">Home</span> (<span class="type">pref</span>erred):
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

The following lists are ''informative''. See RFC 2426 sections 3.2.1 ADR, 3.3.1 TEL, and 3.3.2 EMAIL respectively for normative type values. They are repeated here for convenience. Default type subproperty value(s) is(are) first in each list and indicated in ALL CAPS. types may be multivalued.

* adr type: INTL, POSTAL, PARCEL, WORK, dom, home, pref
* tel type: VOICE, home, msg, work, pref, fax, cell, video, pager, bbs, modem, car, isdn, pcs
* email type: INTERNET, x400, pref, "other IANA registered address types"

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]].

== Examples ==

This section is informative.

=== Sample vCard ===

Here is a sample vCard:

<pre><nowiki>
BEGIN:VCARD
VERSION:3.0
N:Çelik;Tantek
FN:Tantek Çelik
URL:http://tantek.com/
ORG:Technorati
END:VCARD
</nowiki></pre>

and an equivalent in hCard with various elements optimized appropriately. See [[hcard-example1-steps| hCard Example 1]] for the derivation.

<pre><nowiki>
<div class="vcard">
<a class="url fn" href="http://tantek.com/">Tantek Çelik</a>
<div class="org">Technorati</div>
</div>
</nowiki></pre>

This hCard might be displayed as:

[http://tantek.com/ Tantek Çelik]<br />
Technorati

Note: The version information is unnecessary in hCard markup directly since the version will be defined by the profile of hCard that is used/referred to in the 'profile' attribute of the <head> element.

=== More Examples ===

See [[hcard-examples]] for more examples, including all examples from vCard RFC 2426 converted into hCard.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If you have an hCard on your own page, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.
* The [http://www.westmidlandbirdclub.com/ West Midland Bird Club] in the English Midlands uses hCard on its home page, [http://www.westmidlandbirdclub.com/diary/ events diary] and [http://www.westmidlandbirdclub.com/club/contact.htm contact pages]. The former is page footer which is gradually being rolled out across the whole site.
* [http://tagg.no Tagg Media] uses hCard for contact information and provide link to vCard download in the contact section.
* [http://en.wikipedia.org/wiki/Neo_%28The_Matrix%29 Thomas A Anderson in Wikipedia] is now marked up with hCard.
* [http://dconstruct06.madgex.com/ d.Construct 2006 Backnetwork] uses hCards for conference delegates (and provides the markup so that delegates can copy and paste cards into their own sites).
* [http://www.brown.edu Brown University] now uses hCard on the front page
* [http://www.wideblueyonderweb.co.uk Dunks at Wide Blue Yonder Web Design] has added hCard markup on his [http://www.wideblueyonderweb.co.uk/wbyw/pages/contact.htm contact page] and is looking to implement it on all past & future contact pages for clients.
* [http://southamptonrubberstamp.com Southampton Rubber Stamp Company] now has hCard markup with a vCard download link on every page.
* [http://barefoot-ceramics.com Barefoot Ceramics paint your own pottery studio] (in Newport, South Wales) has added hCard markup to its [http://barefoot-ceramics.com/find#address "Find"] page and other address instances. They hopes to implement hCalendar event lists as soon as an ics to hCalendar PHP class can be found or written.
* IBM is embracing microformats. The [http://www.ibm.com/contact/employees/ IBM Employee Directory] now returns hcards in its query results. Also see the [http://www.ibm.com/shortcuts/ Shortcuts Podcast].
* [http://dsingleton.co.uk/ David Singleton] has added a hCard to his blog.
* [http://www.thestreet.org.au The Street Theatre (Canberra, Australia)] has added hCard markup to its [http://www.thestreet.org.au/contact.htm Contact Us] page. hCalendar markup will soon be added for all of our performances.
* [http://www.informatik.uni-hamburg.de/SVS/personnel/henrich/index.php Henrich C. Pöhls] has marked up his about page using hcard, including his PGP-Key that is stored in an abbr title, using class=key.
* [http://www.yalf.de Yalf Webentwicklung] has [http://www.yalf.de/kontakt contact information] available as hCard (and vCard).
* [http://www.zeldman.com/about/ Jeffrey Zeldman]. Jeffrey Zeldman has marked up his about page using hcard.
* [http://WhereAreYouCamping.com Where Are You Camping]. hCards for all members and camps, employing the include pattern as well. AFAIK this is the first Burning Man related microformats implementation, not to mention addresses in Black Rock City.
* [http://www.clacksweb.org.uk Clackmannanshire Council ]. hCard is implemented for all contact details across the site, and for specific individuals such as elected members (Councillors).
* [http://www.webdirections.org Web Directions ]. hCard is used as contact information for the conference, while speakers are marked up with hCard.
* [http://www.markthisdate.com/contactform.html MarkThisDate.com ]. An hCard is implemented on our contactform. For our calendars hCalendars will follow as soon as possible.
* [http://www.msiinet.com/contact/ MSI Systems Integrators] has its "Contact MSI" page encoded with hCards.
* [http://www.coolblue.nl/ Corporate website of Coolblue BV]. hCards were implemented in both the footer of each page, and in the "News" section for press contact information.
* [http://www.besancon.fr/index.php?p=32 Official site of Besançon (France)] uses hCard for each page concerning the small towns surrounding Besançon.
* [http://2006.dconstruct.org/speakers/ d.Construct 2006 conference speakers list] is implemented using hCards.
* [http://local.yahoo.com Yahoo Local] now supports hCards for business and places in the search results
* [http://learningtheworld.eu/imprint/ Learning the World] has hcard information on the imprint, alas we didn't succeed to mark-up the work phone and fax numbers properly.
* The [http://www.fuckparade.org F’parade] website uses hcard, though I didn't find a type to distinguish mobile and landline phone numbers.
* [http://www.miranet.nl/contact.htm Miranet Webdesign] have added a hcard to their [http://www.miranet.nl/contact.htm 'contact' page]
* [http://weblog.200ok.com.au/ Ben Buchanan] has added a vCard to the [http://weblog.200ok.com.au/about/ 'About' page on The 200ok Weblog]
* [http://www.radiantcore.com Radiant Core] has their contact information [http://www.radiantcore.com/contact/ available in hCard].
* [http://www.mikerumble.co.uk/ Mike Rumble] has [http://www.mikerumble.co.uk/contact.html uploaded his hCard].
* [http://www.saumag.edu/ Southern Arkansas University] has its contact footer encoded as hCard
* [http://main.uab.edu/ University of Alabama at Birmingham] has its contact footer encoded as hCard
* [http://www.capital.edu Capital University] has contact footer and bloggers' names encoded as hCard. Also, all page-specific contact information is encoded as hCards (see [http://www.capital.edu/Internet/Default.aspx?pid=67 Admissions] page for an example)
* [http://main.uab.edu/shrp/ UAB School of Health Professions] uses hCard in its contact footer
* [http://green.carisenda.com/ Stephen Stewart] has his hCard on the front page of his weblog ('You are here' section)
* [http://www.fberriman.com/ Frances Berriman] has a hidden vCard in the footers of her website.
* [http://www.candlescience.com/ CandleScience Candle Supply] added a hidden hcard sitewide.
* [http://www.direction.es/ Direction] uses hCard for contact information.
* [http://audiobank.tryphon.org AudioBank] uses hCard to display member informations.
* [http://www.vivabit.com/atmedia2006/speakers/ @media speakers] are marked up with hCard (photos depend on BASE tag support which makes this a good test case)
* [http://www.dougransom.com Doug Ransom] uses hCard for his financial advisory practice.
* [http://rubyandrails.org/usergroups/newcastle/members.html ncl.rb] uses hCard for contact information.
* [http://www.snowinteractive.com/ Snow Interactive] uses hCard for contact information.
* [http://flickr.com Flickr] now supports [[hcard|hCard]] and [http://gmpg.org/xfn XFN] on profile pages. See [http://flickr.com/photos/factoryjoe/113866484/ screenshot of Flickr UI in Flock browser using Flocktails extension - March 17th 2006].
* [http://www.ndiyo.org/contact Contact information for the Ndiyo project]
* [http://www.pixelenvy.co.uk/ Pixel Envy] uses hCard for contact information on every page
* [http://stilbuero.de/contact/ Klaus Hartl] uses hCard in the sidebar for contact information (maybe easier to parse through delivering xhtml as xml).
* [http://charlvn.virafrikaans.com/contact Charl van Niekerk's hCard]
* [http://billy-girlardo.com/WP/ BillyBLOGirlardo] uses hCard for contact information.
* [http://www.hicksdesign.co.uk/ Hicksdesign] uses hCard for contact information.
* http://www.gr0w.com/articles/press/growsearch_launched_press_release/ - hCard in a press release for the press contact info
* http://www.redmonk.com/cote/archives/2006/03/testing_out_mic.html - hCard with explanation
* [http://andy.ciordia.info/ it's my island], personal blog, hcard on the ''[http://andy.ciordia.info/pages/about_me About the Writer]'' page. [[User:Ciordia9|Andy Ciordia]]
* [http://www.windowonwoking.org.uk/ Window on Woking], a local community site in the UK, uses hCard in the homepage of each member organisation and local Councillor.
* [http://ChunkySoup.net/ ChunkySoup.net] has redesigned using hAtom 0.1 and hCards on the entire site -- by [[User:ChrisCasciano|Chris Casciano]]
* [http://www.30boxes.com/ 30 Boxes],a social calendar application and digital lifestyle aggregator, automatically creates an hcard for you with your account. It is found under Settings > Syndication.
* [http://www.nearwhere.com/ Nearwhere.com] allow you to put an hcard on an interactive map.
* [http://www.brentozar.com/ Brent Ozar] added a [http://www.brentozar.com/contact.php contact] page hCard.
* [http://www.kerihenare.com/ Keri Henare] has rewritten his [http://www.kerihenare.com/contact/ contact] page hCard. Now using <code><object></code> instead of <code><img></code> for photo. (Thanks Brian Suda for updating the vCard converter)
* [http://michaelraichelson.com/contact/ Michael Raichelson] had an hCard on his contact page before SXSW, but never thought to add it here until Tantek requested it.
* [http://www.commoner.com/~lsimon/lindsey_simon_hcard.html Lindsey Simon] has added an hCard to his website as per Tantek's SXSW request for folks to try it
* [http://www.davidgagne.net/ David Gagne] has an hCard in his sidebar.
* [http://www.churchzip.com/map/ Churchzip.com/map] and [http://www.skiwhere.com/map/ Skiwhere.com/map], provide churches, hotels, and ski resorts on the same maps. Locations are formatted as hcards.
* All [http://www.iqdir.com/ IQ Directory Solutions] Yellow Pages web portals use [[hcard|hCard]] markup on listings. For example [http://www.yellowpages-cambodia.com/ Cambodia Yellow Pages] and [http://www.superpages.com.my/ Malaysia Super Pages]
* Ning's cloneable Group app uses fuzzy matching to map custom fields to [[hcard|hCard]] markup on its [http://group.ning.com/index.php?controller=person&action=view&content=JonathanAquino profile] pages.
* [http://claimid.com/factoryjoe Chris Messina' ClaimID hCard]
* [http://factoryjoe.com/blog/hcard Chris Messina' hCard]
* [http://flock.com/about Flock About]
* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* [http://www.gr0w.com/articles/press/growsearch_launched_press_release/ GrowSearch Launched (Press Release)] uses an hCard to provide Press Contact Point.
* The [http://www.arborday.org/ National Arbor Day Foundation] has started using hCards for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] has numerous hCards, especially on the [http://www.multipack.co.uk/members/ members page], as well as the next meeting information.
* [http://deadringrancor.livejournal.com/ Justin McDowell] used an hCard when [http://deadringrancor.livejournal.com/221332.html referring to a person in his blog post]
* [http://davecardwell.co.uk/cv/ Dave Cardwell] has included his hCard in his Curriculum Vitae.
* [http://blog.usweb.com/ Shaun Shull] has written a great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], and has included his [[hcard|hCard]] as one of the examples.
* [http://www.thefutureoftheweb.com/ Jesse Skinner] has written a simple [http://www.thefutureoftheweb.com/blog/2006/1/hcard tutorial with examples]
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the venue, contacts, and program committee members all with hCard.
* [http://www.avf-nexus.co.uk AVF-Nexus] have a hCard on their [http://www.avf-nexus.co.uk/contact/ contact page] - (by [http://creation.uk.com Creation"])
* [http://www.thefantasticos.com/andrew/ Andrew White] posted [http://www.thefantasticos.com/andrew/index.php/my-hcard/ his hCard] and [http://www.thefantasticos.com/andrew/index.php/62/microformats-the-should-have-been-obvious-web-dev-tool/ blogged about it].
* [http://www.2sheds.ru Oleg "2sheds" Kourapov] in his [http://www.2sheds.ru/blog/ blog] ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog X2V]) has turned personal profile into hCard ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/hcard.html X2V]) and his blogroll - into combination XFN/hCards ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/friends.html X2V])
* [http://www.approveddesign.co.uk Approved Design Consultancy] have a hCard on their [http://www.approveddesign.co.uk/about/contact/ contact page] as well as on their [http://www.approveddesign.co.uk/about/people/ people section] - (by [http://creation.uk.com Creation"])
* [http://weblog.200ok.com.au/ Ben Buchanan] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin Morris] have [http://weblog.200ok.com.au/2006/01/griffith-phonebook-adds-hcard-and.html implemented hCards and vCards] for the [http://www.griffith.edu.au Griffith University] [http://www.griffith.edu.au/find/content_phonebook.html online phone book]. Eg. [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=ben+buchanan&format=search Ben's vCard] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin's vCard]
* WWF-Australia [http://wwf.org.au/about/contactdetails/ contact details page]
* [http://rasterweb.net/raster/ Pete Prodoehl] used the hCard format on his [http://rasterweb.net/raster/contact.html Contact page] and his [http://rasterweb.net/portfolio/ Portfolio]
* [http://alexander-mette.de amette] uses the hCard format in a module of his TikiWiki powered blog
* [http://staff.washington.edu/oren/weblog2/ Oren Sreebny] has an hcard on his blog main index template
* [http://www.cs.brandeis.edu/~zippy/ Patrick Tufts] has an hCard on his homepage.
* [http://ascii20.blogspot.com/ Mathias Kolehmainen and Jamie Taylor] have hCards on their weblog.
* [http://www.hoppsan.org/jamesb/blogger/ Barnaby James] has a hCard on his weblog.
* [http://esa-education.com/schools/map ESA Education] Uses hCards for their 100+ schools and each of the individual school sites.
* [http://www.thereisnocat.com/#vcard Ralph Brandi] has added an hCard to the sidebar of his weblog as a result of Tantek Çelik's portion of the Microformats presentation at SXSW 2006.
* [http://www.pierce.ctc.edu/ephone/ Pierce College] -- community college directory uses hCard on all individual directory entries.
* [http://www.ukoln.ac.uk/web-focus/events/workshops/webmaster-2006/ the Institutional Web Management Workshop 2006] have marked up all their [http://www.ukoln.ac.uk/web-focus/events/workshops/webmaster-2006/committee/ speakers with hCard].
* http://wikitravel.org/en/Singapore/Sentosa. Wikitravel is experimenting with hcard on its travel guides. This guide uses hcard for all its business listings. More info on http://wikitravel.org/en/Wikitravel_talk:Listings.
* [http://www.musik-erber.de/ Musik-Erber] uses to present contact information at the sidebar
* [http://cdevroe.com/about/#contact Colin D. Devroe] uses hCard to display his contact information on his about page
* The ECS (Scool of Electronics and Computer Science at the University of Southampton) [http://www.ecs.soton.ac.uk/people People Pages] use vCard. Contact cjg@ecs.soton.ac.uk if there's any bugs.
* [http://www.southwestern.edu/~ramseyp Pat Ramsey] has his contact information on his blog marked up with hCard. Contact [mailto:ramsey.pat@gmail.com ramsey.pat@gmail.com] if there are any bugs there.
* [http://www.meryl.net/ Meryl K. Evans] has a hidden hCard on her homepage.
* [http://www.vyre.com/company/contact-us/ VYRE] is a CMS development company with a "contact us" hCard
* [http://www.lefdal.cc/info.php Alf Kåre Lefdal] uses hCard in the markup of his contact information
* [http://www.pignwhistle.com.au/ Pig N Whistle, a chain of pubs in Brisbane, Australia] is using hcard to mark up all the contact pages for its outlets and head office
* [http://kollitsch.de/ Patrick Kollitsch] has built his personal Profil as hCard
* [http://www.hbs.edu/faculty/dspar/ Harvard Business School] has hCards on their faculty pages
* [http://openmikes.org/ openmikes.org] uses hCards for open mike venue addresses in its listing detail pages.
* [http://www.intertecnollc.com/ InterTecno, LCC] publishes an hCard on the home page and contact page.

=== Examples ===
* [http://shiftingpixel.com/about/the-artist shifting pixel photoblog] has published an hCard.
* [http://thoughtport.blogspot.com/ Aiden Kenny] hasn't published his hCard yet, but he has [http://thoughtport.blogspot.com/2005/07/elemental-particles-of-web.html published his hCard icon]: http://photos1.blogger.com/blogger/4224/444/320/AK-Hcard-icon.gif
* [http://thedredge.org Andy Hume] uses hCards to mark-up the names and URLs of commentors on his blog, e.g. his [http://thedredge.org/2005/06/using-hcards-in-your-blog/ blog post on "Using hCards in your blog"].
* [http://www.bidclix.com/ BidClix]'s [http://www.bidclix.com/AboutContact.html Contact BidClix] page has it's ''contact info'' marked up with an hCard.
* [http://suda.co.uk/ Brian Suda] has managed to embed a photo in [http://suda.co.uk/contact/ his hCard] through the [http://www.ietf.org/rfc/rfc2397.txt data uri scheme] by converting the image to BASE64 code. View the Source to see how this is accomplished. [http://suda.co.uk/projects/X2V/get-vcard.php?uri=http%3A//suda.co.uk/contact/ The X2V link] will extract the image and encode it for a vCard which will be displayed in some address book applications.
** Inspired by this I thought to try the same for SVG at [http://barefoot-ceramics.com/find Barefoot] ...
** <img class="photo" style="display:none;" src="data:image/svg+xml;text,<?xml version='1.0' encoding='UTF-8' standalone='no'?><svg xmlns:svg='http://www.w3.org/2000/svg' xmlns='http://www.w3.org/2000/svg' version='1.0' width='50' height='80' id='svg3957'><defs id='defs3959' /><path d='M 28.91433,...32.192802 z' style='fill:#cc4d00;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.625;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1' id='path9551' /></svg>" alt="Barefoot">
** Does it work?? Well it parses OK. Some automated tools replace the < with %3C (etc., eg Brian Suda's vcard form). Unfortunately Kontact (KDE contacts tool) doesn't handle SVG as a vCard photo or logo format - I don't know if this is a standard. It seems it could work and maybe even does somewhere. Maybe the text field needs to be Base64 encoded? ... see [http://slashdot.org/~pbhj/journal/142382 pbhj's slashdot journal] for a bit more on this.
* [http://cinematreasures.org Cinema Treasures] uses hCard to markup venue information for 10,000+ movie theaters.
* [http://www.w3.org/People/Connolly/events/ Dan Connolly's index of events and talks] has hCards for many of the people he has met at those events. In Mar 2006, he moved a bunch of hotel contact info from his PDA to this page; it's now up to 32 hCards.
* [http://doncrowley.blogspot.com/ Don Crowley] has published [http://www.crowley.nl/hcard.html his hCard] as well as a nifty hCard button: http://www.crowley.nl/images/hcard.png
* [http://loadaveragezero.com/hnav/contact.php Douglas W. Clifton] added all types of contact information
* [http://eventful.com Eventful] publishes all of its venue information pages with embedded hCards.
* [http://www.iowamilitaryveteransband.com/members/ Iowa Military Veterans Band Contacts] - 95 hCards [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ marked up by Scott Reynen]
* [http://JackWolfgang.blogspot.com Jack L. Wolfgang II] has [http://jack.randomata.com/resume/ converted the addresses in his resume to hCards].
* [http://www.efas.fupl.asso.fr/efas/_Mathieu-Drouet_.html Mathieu Drouet] and [http://www.efas.fupl.asso.fr/efas/_Annie-Leger_.html Annie Leger] both have hCards
* [http://www.ndunn.com Neil Dunn] has published his rather [http://www.ndunn.com/2005/10/7/hCard good looking hCard]
* [http://www.oliverbrown.me.uk/ Oliver Brown] has published his hCard.
* [http://www.paradigmproductions.org/contact/ Paradigm Productions] published a vcard as a ul (marked up by [http://www.linkingarts.com/ Peter Jacobson])
* [http://www.splintered.co.uk/ Patrick H. Lauke] has marked up [http://www.splintered.co.uk/about/ his contact info with hCard].
* [http://blah Paul Schreiber has published his hCard on [http://paulschreiber.com/about/?contact his about page].
* [http://paulschreiber.com/blog/ Paul Schreiber]'s [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCards for upcoming artists, as well as an hCard for the page itself. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCards for all past artists.
* [http://www.paulmichaelsmith.com/blog/hcard.htm Paul Smith] has created an hCard page which is Human Readable, and a link to X2V passing the same hCard page to generate a vCard.
* [http://www.windley.com/archives/2005/07/hcards_trying_o.shtml Phil Windley has published] [http://phil.windley.org/hcard.html his hCard].
* [http://www.go-curiosity.com/about.htm Piercarlo Slavazza] has published an hCard.
* [http://zooibaai.nl/ Rob Mientjes] has published his hCard on [http://zooibaai.nl/about/ his about page].
* [http://rbach.priv.at/Contact Robert Bachmann] has published his hCard and [http://rbach.priv.at/Images/hcard a button].
* [http://blah Scott Reynen has published his hCard on [http://www.randomchaos.com/document.php?source=scott_reynen his profile page].
* [http://www.stackframe.com/ StackFrame, LLC] has published [http://www.stackframe.com/people/ employee] and [http://www.stackframe.com/contact/ general] contact information as hCards.
* [http://www.wolfsreign.com Steven Ametjan] has published his hCard on [http://www.wolfsreign.com/about/ his about page].
* [http://tantek.com/microformats/2005/syndicate/speakers-list.html Syndicate - Speaker List] as a set of hCards
* [http://tagcamp.org/index.cgi?ContactList TagCamp contact list]
* [http://tantek.com/log Tantek's Thoughts] includes an inline author hCard at the bottom of the page.
* [http://technorati.com/ Technorati]'s [http://www.technorati.com/about/ About page] lists their '''Media Contact'''
* [http://www.deadringerart.com/ The Brothers McDowell] have hCards at their Contact page.
* [http://twinsparc.com/ Twinsparc] put an hCard in the header and footer of all their pages.
* [http://tantek.com/microformats/2005/web2/speakers.html Web 2.0 Conference speakers page marked up with hCard]
* [http://we05.com/ Web Essentials 05] marked up all their [http://we05.com/presenters.cfm presenters with hCard].

=== Examples with some problems ===

* [http://gbraad.nl/ Gerard Braad] has published an example on his [http://gbraad.nl/site/?p=profile profile] page that is almost consistent with his original [http://gbraad.nl/files/gbraad.vcf vCard] file. Also progress is made for transforming his [http://files.gbraad.nl/foaf.rdf FoaF] file to a hCard encoded representation. (also done for my spouse:[http://spouse.gbraad.nl/site/?p=profile Yong Yuan])
** (2005-09-27) PASSED, PASSED
** WARNINGS
*** uses 'n given-name' and 'n family-name' instead of nesting the given- and family- names inside the 'n'
*** has one 'tel' value with a bunch of values stuffed in
*** probably more problems --[[User:RyanKing|RyanKing]] 17:19, 5 Jan 2006 (PST)
* [http://kinrowan.net/ Cori Schlegel] [http://kinrowan.net/blog/wp/archives/2005/07/08/a-problem-with-the-structured-blogging-plug-in-for-wordpress/ discusses how he has updated] [http://kinrowan.net/blog/contact his contact page with hCard]
** INVALID - using 'prefix' instead of 'honorific-prefix' and type's in classnames (in both adr and tel) and has two photo's (the second could be 'logo') --[[User:RyanKing|RyanKing]] 15:15, 5 Jan 2006 (PST)
* The good ship [http://styrheim.com/test/leonid.html Leonid Miloslavskiy] spotted in the North Atlantic
** INVALID --[[User:RyanKing|RyanKing]] 00:50, 27 Oct 2005 (PDT)
*** class="family" should probably be family-name
*** the "n" property is missing and the "n" optimization can't be applied
*** the first geo propery is empty, the second one is invalid (ie, it doesn't contain lat/long)
* [http://landsbank.fo/#hCard Landsbanki Føroya]
** INVALID - using embedded rdf/xml invalidly
* [http://chrischerry.name/blog/contact/ Chris Cherry's contact page with his hCard]
** WARNING - uses class="cell" instead of <span class="type">cell</span>
* [http://www.bath.ac.uk/contact/ University of Bath] Person Finder results are encoded with hCards so you can easily create a vCard from any result.
** ERROR - attempt to use Implied-N optimization where that's not possible. --[[User:RyanKing|RyanKing]] 14:29, 5 Jan 2006 (PST)
** Error appears for external users only. Won't be fixed any time soon. -- [[User:PhilWilson|PhilWilson]] 00:03, 28 Jan 2006 (GMT)
* [http://richi.co.uk/blog/2005/12/structured-blogging.html Richi Jennings] has put up his attempt
** INVALID, missing FN --[[User:RyanKing|RyanKing]] 12:47, 5 Jan 2006 (PST)
* [http://www.yellowpencil.com/contact/ Yellow Pencil] Using microformats to present company contact information
** First hcard has empty "fn" and no "n". "fn" should be with "org" -- [[User: ScottReynen |ScottReynen]] 21:29, 19 Jun 2006 (CST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCards. If you have an hCard implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.
*[http://elbewerk.com/2006/09/vcardexplorer-02.shtml vCardExplorer 0.2] is a Mac OS X Application, that displays VCF-Files and extracts hCards from Websites written by Daniel Kagemann.
* [http://placenamehere.com/mf/nnwextract/ Extract Microformats] is a script for NetNewsWire that supports extracting hCard and hCalendar data in blog posts (via technorati service). Written by [[User:ChrisCasciano|Chris Casciano]]
* [http://allinthehead.com/hkit/ hKit] is an open source PHP 5 parsing library with support for hCard.
* [http://kitchen.technorati.com/search Technorati Microformats Search] indexes [[hcard|hCard]], [[hcalendar|hCalendar]], and [[hreview|hReview]] as [http://tantek.com/log/2006/05.html#d31t1802 announced by Tantek].
** list of pages with indexing Issues so they can be looked into as to why data is not being extracted
** suda.co.uk/contact
** multipack.co.uk

* [http://www.webstandards.org/action/dwtf/microformats/ Dreamweaver Extension suite] from the [http://webstandards.org/ Web Standards Project] enables the authoring of hCards from within Dreamweaver 8.
* [http://scooch.gr0w.com/ Scooch] is a slide show and presentation creator that generates a [[hCard]] for individual slide show authors and comment authors with a CSS button to parse and download via [http://suda.co.uk/projects/X2V/ X2V]. Also uses [[hReview]] for slide ratings and [[rel-tag]] for categories.
* [http://blog.codeeg.com/2006/03/20/flock-tails-flocktails/ Flocktails] - port of Tails extension for Flock 0.5.12 that looks for hCards, hCalendar, xFolk and hReview and tosses them into a handy topbar
*[http://opensource.reevoo.com/2006/03/08/release-uformats-12/ uformats] is a ruby library that can parse [[hCalendar]], [[hCard]], [[hReview]] and [[rel-tag]]
* [http://blog.codeeg.com/tails-firefox-extension/ Tails] is a Firefox Extension that will display the presence and details of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage. [https://addons.mozilla.org/firefox/2240/ Tails Export] is an extended version.
* [http://www.stripytshirt.co.uk/features/firefox/smartzilla Smartzilla is a Firefox Extension] that finds hCards on web pages and lets you add them to your addressbook.
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCard and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* There is [http://flickr.com/photos/factoryjoe/68755089/ evidence of built-in hCard support in the Konqueror browser]. Specifically, Konqueror 3.5, in KDE 3.5 (kubuntu Breezy w/ update).
* There is [http://tagcamp.org/index.cgi?ContactList evidence of a kwiki plugin for hCards]. Update: the [http://svn.kwiki.org/cwest/Kwiki-hCard/ hCard kwiki plugin svn repository]. See the [http://microwiki.caseywest.com/index.cgi?hCard documentation of the hCard kwiki plugin].
* [http://suda.co.uk/projects/X2V/ X2V] is a bookmarklet that parses hCard and produces a .vcf (vCard) stream. Note: needs to be updated as the spec is refined
* [http://www.stripytshirt.co.uk Duncan Walker] has built [http://www.stripytshirt.co.uk/features/firefox/smartzilla a Firefox extension] that gets hCard data from a webpage, uses Brian Suda's XSL (locally) to transform it to vcard format and opens the resulting .vcf file.
* [http://george.hotelling.net/90percent/ George] has written a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script] that detects hCards and allows users to easily add them to their address book application. Relies on the X2V web service to do the conversion.
* [http://inside.glnetworks.de/ Martin Rehfeld] has updated the work of [http://blogmatrix.blogmatrix.com/ David Janes] and produced a [[Greasemonkey]] [http://inside.glnetworks.de/2006/06/05/microformats-have-arrived-in-firefox-15-greasemonkey-06/ script] that finds many microformat elements, including hCards, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003379 provides a popup menu of actions]. The hCard to vCard conversion is done internally within the script. ''This will work with FireFox 1.5+/GreaseMonkey 0.6.4+ now.''
* [http://diveintomark.org/ Mark Pilgrim] has also written an [http://diveintomark.org/projects/greasemonkey/hcard/ hCard parser Greasemonkey user script]. It is self-contained and does not rely on the X2V web service.
* [http://www.oliverbrown.me.uk/2005/09/03/a-working-microformats-extension-to-simplexml/ Oliver Brown] has written an "extension" to [http://www.php.net/simplexml SimpleXML] that gives simple access to hCard information in PHP 5.
* [http://thedredge.org/ Andrew D. Hume] has built a system (Wordpress plugin?) for [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hcards in your blog] to represent people leaving comments on blog posts.
* The [http://tantek.com/microformats/hcard-creator.html hCard creator] is a very simple, yet illustrative, open source user interface / form / script which creates an hCard in real-time as you type in a set of contact information.
* [http://greenbytes.de/tech/webdav/rfc2629.xslt rfc2629.xslt] now attempts to generate hCard information ([http://ietf.org/rfc/rfc2629 RFC2629] is an XML format for authoring RFCs and Internet Drafts, see [http://greenbytes.de/tech/webdav/rfc2629xslt/rfc2629xslt.html example document])
* [http://tantek.com/microformats/buddylist2hcards.html iChat buddy list to hCards] - Open source AppleScript to automatically convert one's buddy list in the MacOSX iChat AIM client into a valid XHTML 1.0 Strict list of hCards.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] is a collection of palmpilot and sidekick tools. It includes X2V derivatives xhtml2hcard.xsl and toICal.xsl plus some [http://dev.w3.org/cvsweb/2001/palmagent/hcardTest.html hcardTest] materials
* [http://www.openpsa.org/ OpenPsa 2.x] CRM application uses hCard for all person listings. The widget is [http://www.midgard-project.org/midcom-permalink-922834501b71daad856f35ec593c7a6d reusable across Midgard CMS]
* [http://www.metonymie.com Emiliano Martínez Luque] has written an experimental [http://www.metonymie.com/hCard_extract/app.html hCard finder and structured search application] that finds hCards within a given set of URLs and returns the ones that match the specified search criteria.
* [http://randomchaos.com/microformats/base/ Microformat Base] is an open-source PHP microformat aggregation crawler, currently recognizing hreview, hcalendar, and hcard.

== Additional Applications ==
This section is '''informative'''.

There are numerous potential additional uses and applications for hCards on the Web. The following are merely a few thoughts and possibilities that folks have come up with:

* As an open standard/format for [http://www.gravatar.com/ Gravatars].
* Marking up individual authors of blog posts on a group blog
* Marking up people's names and URLs in a blogroll
* Any reference to people in blog posts (e.g. when citing them, or referencing them, or describing them, by name).
* ...

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426]

=== Informative References ===
* [http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426]
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcard hCard term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* Contributed from http://developers.technorati.com/wiki/hCard.
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Specifications That Use hCard ====
* [[adr]]
* [[geo]]
* [[hcalendar|hCalendar]]
* [[hreview|hReview]]

==== Similar Work ====
* [http://www.intertwingly.net/wiki/pie/PaceBetterPersonElement Atom PaceBetterPersonElement]
* [http://www.jabber.org/jeps/jep-0054.html JEP-0054: vcard-temp]

== Related Pages ==
* [http://microformats.org/code/hcard/creator hCard creator] ([[hcard-creator-feedback|feedback]]) - create your own hCard.
* [[hcard-authoring|hCard authoring]] - learn how to add hCard markup to your existing contact info.
* [[hcard-faq|hCard FAQ]] - If you have any questions about hCard, check here, and if you don't find answers, add your questions!
* [[hcard-parsing|hCard parsing]] - Normatively details of how to parse hCards.
* [[hcard-issues|hCard issues]] - Please add any issues with the specification to the issues page.
* [[hcard-profile|hCard profile]] - The XMDP profile for hCard

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.

* [[hcard-brainstorming|hCard Brainstorming]] - where we are keeping our brainstorms and other explorations relating to hCard
* [[hcard-tests|hCard tests]] - a wiki page with actual embedded hCards to try parsing.

== Further Reading ==
* [http://www.digital-web.com/articles/microformats_primer/ Digital Web Magazine: Microformats Primer] by Garrett Dimon has a good intro to hCard
* [http://24ways.org/advent/practical-microformats-with-hcard Practical Microformats with hCard] by Drew McLellan
* [http://thedredge.org/ Andrew D. Hume] has written a blog post on [http://usabletype.com/articles/2005/usable-microformats/ usable microformats] which discusses hCard
* [http://www.thefutureoftheweb.com/blog/2006/1/hcard Jesse Skinner's introduction to hCard]
* [http://blog.usweb.com/ Shaun Shull's] great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], including his [[hcard|hCard]] as an example.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page] and the [http://technorati.com/tags/hcard hCard tag]

hcard

2006-09-06T11:43:23Z

Raster: /* Examples in the wild */ added www.intertecnollc.com

<h1>hCard</h1>

hCard is a simple, open, distributed format for representing people, companies, organizations, and places, using a 1:1 representation of the properties and values of the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in [[semantic-xhtml|semantic XHTML]]. hCard is one of several open [[microformats|microformat]] standards suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML.

Want to get started with writing an [[hcard|hCard]]? Use the [http://microformats.org/code/hcard/creator hCard creator] to write up some contact information and publish it, or follow the [[hcard-authoring|hCard authoring tips]] to add hCard markup to your current contact page.

__TOC__

== Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to: my good friend [http://vadim.com/ Vadim] who introduced me to vCard ''many'' years ago, and if I'd only paid more attention then, perhaps I could have helped a lot of people avoid wasting a lot of time reinventing various standards wheels.

== Introduction ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly interoperably implemented (e.g. Apple's "Address Book" application built into MacOSX).

In addition, many bloggers identify themselves by name and discuss their friends and family. With just a tad bit of structure, bloggers can discuss people in their blog(s) in such a way that spiders and other aggregators can retrieve this information, automatically convert them to vCards, and use them in any vCard application or service.

This specification introduces the '''hCard''' format, which uses a 1:1 representation of the properties and values of the aforementioned vCard standard, in semantic XHTML. Bloggers can both embed hCards directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCard enables applications to retrieve information directly from web pages without having to reference a separate file.

Use the [http://microformats.org/code/hcard/creator hCard creator] and copy the HTML code it generates to your blog or website to publish your contact info.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== In General ===
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) forms the basis of hCard.

The basic format of hCard is to use vCard object/property names in lower-case for class names, and to map the nesting of vCard objects directly into nested XHTML elements.

=== More Semantic Equivalents ===
However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in vCard becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vcard"</code> in hCard.
* Similarly, <code>EMAIL</code> in vCard becomes <code><nowiki><a class="email" href="mailto:...">...</a></nowiki></code>
* <code>PHOTO</code> in vCard becomes <code><img class="photo" src="..." alt="Photo of ..." /></code> or <code><object class="photo" data="..." type="...">Photo of ...</object></code>
* <code>UID</code> in vCard simply becomes another semantic applied to a specific URL (or EMAIL) for an hCard.

=== Singular vs. Plural Properties ===

For properties which are singular (e.g. "N" and "FN"), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL"), each class instance should create a instance of that property.

==== Singular properties ====

Singular properties: "FN", "N", "BDAY", "TZ", "GEO", "SORT-STRING", "UID", "CLASS".

All other properties are plural. This list has been derived by analyzing the semantics of the individual properties in vCard RFC2426 and determining logically that they MUST be singular per their semantics. See [[hcard-singular-properties]] for explanations.

==== Plural Properties Singularized ====

Since plural property names become their singular equivalents, even if the original plural property permitted only a single value with multiple components, those multiple components are represented each with their own singularly named property and the the property is effectively multivalued and subject to the above treatment of multivalued properties.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

If an <code><a></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>href="..."</code> attribute provides the property value.
# For other properties, the element's content is the value of the property.

If an <code><img></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
# For other properties, the <code><img></code> element's '<code>alt</code>' attribute is the value of the property.

If an <code><object></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>data="..."</code> attribute provides the property value.
# For other properties, the element's content is the value of the property.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. This typically occurs when a property has a subtype, like TEL. For this purpose, the special class name "<code>value</code>" is introduced to excerpt out the subset of the element that is the value of the property. E.g. here is an hCard fragment for marking up a home phone number:

<pre><nowiki>
<span class="tel">
<span class="type">home</span>:
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

This hCard fragment could be displayed as:

home: +1.415.555.1212

=== Property Exceptions ===

vCard has several properties which either do not make sense on, or are already implied within the context of a web page. This section explains what to (not) do with them.

# '''NAME''', '''PROFILE''', '''SOURCE''', '''PRODID''', '''VERSION''' properties as defined in Sections 2.1.2, 2.1.3, 2.1.4, 3.6.3, 3.6.9 of RFC 2426. Content publishers MUST NOT use these properties in their hCards, and as such, hCard consumers/parsers MUST IGNORE these properties if they are found within an hCard. Instead. hCard to vCard converters SHOULD use the title of the page where the hCard is found (e.g. the <code><title></code> element in (X)HTML documents) to construct the NAME property, MAY output a PROFILE value of "<code>VCARD</code>" per RFC 2426, SHOULD use the URL of the page where the hCard is found to construct the SOURCE property (e.g. perhaps as a parameter to a URL/service that converts hCards to vCards), for an output vCard stream (e.g. a .vcf file). Only services/applications that output actual vCards should write the PRODID property, with the product identifier for said service/application. Similarly only such services/applications should write the VERSION property, with the value "3.0" (without quotes) per RFC2426 Section 3.6.9.

=== Organization Contact Info ===

If the "FN" and "ORG" properties have the exact same value (typically because they are set on the same element, e.g. class="fn org"), then the hCard represents contact information for a company or organization and should be treated as such. In this case the author MUST also NOT set the "N" property, or set it (and any sub-properties) explicitly to the empty string "". Thus parsers should handle the missing "N" property in this case by implying empty values for all the "N" sub-properties.

=== Implied "n" Optimization ===

Although vCard requires that the "N" property be present, the authors of the vCard specification (RFC 2426) themselves do not include "N" properties in their vCards near the end of the spec (p.38). This apparent contradiction can be resolved by simply allowing the "FN" property to imply "N" property values in typical cases provided in the spec. We do so explicitly in hCard.

If "FN" and "ORG" are not the same (see previous section), and the value of the "FN" property is exactly two words (separated by whitespace), and there is no explicit "N" property, then the "N" property is inferred from the "FN" property. For "FN"s with either one word see below, and for three or more, the author MUST explicitly markup the "N", except for the organization contact info case, [http://microformats.org/wiki/hcard#Organization_Contact_Info see above] for that.

# The content of "FN" is broken into two "words" separated by whitespace.
# The ''first'' word of the "FN" is interpreted as the "given-name" for the "N" property.
# The ''second/last'' word of the "FN" is interpreted as the "family-name" for the "N" property.
# Exception: If the first word ends in a "," comma OR if the second word is a single character (optionally followed by a period "."), then the first word (minus the comma at the end if any) is interpreted as the "family-name" and the second word is interpreted as the "given-name".

This allows simplification in the typical case of people stating:
* given-name (space) family-name
* family-name (comma) given-name
* family-name (comma) given-name-first-initial
* family-name (space) given-name-first-initial (optional period)

=== Implied "nickname" Optimization ===

Due to the prevalence of the use of nicknames/handles/usernames on the Web in actual content published on the Web (e.g. authors of [[hReview|reviews]]), hCard also has an implied "nickname" optimization to handle this.

Similar to the implied "n" optimization, if "FN" and "ORG" are not the same, and the value of the "FN" property is exactly one word, and there is no explicit "N" property, then:

# The content of the "FN" is treated as a "nickname" property value.
# Parsers should handle the missing "N" property by implying empty values for all the "N" sub-properties.

Note: the hCard may have additional explicit "nickname" property values in addition to the implied nickname.

=== Implied "organization-name" Optimization ===

The "ORG" property has two subproperties, organization-name and organization-unit. Very often authors only publish the organization-name. Thus if an "ORG" property has no "organization-name" inside it, then its entire contents MUST be treated as the "organization-name".

=== Tags as Categories ===

Categories in hCard can optionally be represented by tags with rel-tag. When a category property is a rel-tag, the tag (as defined by rel-tag) is used for that category.

=== Root Class Name ===

The root class name for an hCard is "vcard".

=== Property List ===

This is the list of properties (and subproperties, in parentheses, like this) in hCard, taken from vCard:

* fn, n (family-name, given-name, additional-name, honorific-prefix, honorific-suffix), nickname, sort-string
* url, email (type, value), tel (type, value)
* adr (post-office-box, extended-address, street-address, locality, region, postal-code, country-name, type, value), label
* geo (latitude, longitude), tz
* photo, logo, sound, bday
* title, role, org (organization-name, organization-unit)
* category, note
* class, key, mailer, uid, rev
==== type subproperty values ====

The 'type' subproperty in particular takes different values depending on which property it is a subproperty of. These 'type' subproperty values are case-INSENSITIVE, meaning "Home" is the same as "home", as well as multivalued, e.g. a tel can be home and preferred:
<pre><nowiki>
<span class="tel"><span class="type">Home</span> (<span class="type">pref</span>erred):
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

The following lists are ''informative''. See RFC 2426 sections 3.2.1 ADR, 3.3.1 TEL, and 3.3.2 EMAIL respectively for normative type values. They are repeated here for convenience. Default type subproperty value(s) is(are) first in each list and indicated in ALL CAPS. types may be multivalued.

* adr type: INTL, POSTAL, PARCEL, WORK, dom, home, pref
* tel type: VOICE, home, msg, work, pref, fax, cell, video, pager, bbs, modem, car, isdn, pcs
* email type: INTERNET, x400, pref, "other IANA registered address types"

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]].

== Examples ==

This section is informative.

=== Sample vCard ===

Here is a sample vCard:

<pre><nowiki>
BEGIN:VCARD
VERSION:3.0
N:Çelik;Tantek
FN:Tantek Çelik
URL:http://tantek.com/
ORG:Technorati
END:VCARD
</nowiki></pre>

and an equivalent in hCard with various elements optimized appropriately. See [[hcard-example1-steps| hCard Example 1]] for the derivation.

<pre><nowiki>
<div class="vcard">
<a class="url fn" href="http://tantek.com/">Tantek Çelik</a>
<div class="org">Technorati</div>
</div>
</nowiki></pre>

This hCard might be displayed as:

[http://tantek.com/ Tantek Çelik]<br />
Technorati

Note: The version information is unnecessary in hCard markup directly since the version will be defined by the profile of hCard that is used/referred to in the 'profile' attribute of the <head> element.

=== More Examples ===

See [[hcard-examples]] for more examples, including all examples from vCard RFC 2426 converted into hCard.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If you have an hCard on your own page, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.
* The [http://www.westmidlandbirdclub.com/ West Midland Bird Club] in the English Midlands uses hCard on its home page, [http://www.westmidlandbirdclub.com/diary/ events diary] and [http://www.westmidlandbirdclub.com/club/contact.htm contact pages]. The former is page footer which is gradually being rolled out across the whole site.
* [http://tagg.no Tagg Media] uses hCard for contact information and provide link to vCard download in the contact section.
* [http://en.wikipedia.org/wiki/Neo_%28The_Matrix%29 Thomas A Anderson in Wikipedia] is now marked up with hCard.
* [http://dconstruct06.madgex.com/ d.Construct 2006 Backnetwork] uses hCards for conference delegates (and provides the markup so that delegates can copy and paste cards into their own sites).
* [http://www.brown.edu Brown University] now uses hCard on the front page
* [http://www.wideblueyonderweb.co.uk Dunks at Wide Blue Yonder Web Design] has added hCard markup on his [http://www.wideblueyonderweb.co.uk/wbyw/pages/contact.htm contact page] and is looking to implement it on all past & future contact pages for clients.
* [http://southamptonrubberstamp.com Southampton Rubber Stamp Company] now has hCard markup with a vCard download link on every page.
* [http://barefoot-ceramics.com Barefoot Ceramics paint your own pottery studio] (in Newport, South Wales) has added hCard markup to its [http://barefoot-ceramics.com/find#address "Find"] page and other address instances. They hopes to implement hCalendar event lists as soon as an ics to hCalendar PHP class can be found or written.
* IBM is embracing microformats. The [http://www.ibm.com/contact/employees/ IBM Employee Directory] now returns hcards in its query results. Also see the [http://www.ibm.com/shortcuts/ Shortcuts Podcast].
* [http://dsingleton.co.uk/ David Singleton] has added a hCard to his blog.
* [http://www.thestreet.org.au The Street Theatre (Canberra, Australia)] has added hCard markup to its [http://www.thestreet.org.au/contact.htm Contact Us] page. hCalendar markup will soon be added for all of our performances.
* [http://www.informatik.uni-hamburg.de/SVS/personnel/henrich/index.php Henrich C. Pöhls] has marked up his about page using hcard, including his PGP-Key that is stored in an abbr title, using class=key.
* [http://www.yalf.de Yalf Webentwicklung] has [http://www.yalf.de/kontakt contact information] available as hCard (and vCard).
* [http://www.zeldman.com/about/ Jeffrey Zeldman]. Jeffrey Zeldman has marked up his about page using hcard.
* [http://WhereAreYouCamping.com Where Are You Camping]. hCards for all members and camps, employing the include pattern as well. AFAIK this is the first Burning Man related microformats implementation, not to mention addresses in Black Rock City.
* [http://www.clacksweb.org.uk Clackmannanshire Council ]. hCard is implemented for all contact details across the site, and for specific individuals such as elected members (Councillors).
* [http://www.webdirections.org Web Directions ]. hCard is used as contact information for the conference, while speakers are marked up with hCard.
* [http://www.markthisdate.com/contactform.html MarkThisDate.com ]. An hCard is implemented on our contactform. For our calendars hCalendars will follow as soon as possible.
* [http://www.msiinet.com/contact/ MSI Systems Integrators] has its "Contact MSI" page encoded with hCards.
* [http://www.coolblue.nl/ Corporate website of Coolblue BV]. hCards were implemented in both the footer of each page, and in the "News" section for press contact information.
* [http://www.besancon.fr/index.php?p=32 Official site of Besançon (France)] uses hCard for each page concerning the small towns surrounding Besançon.
* [http://2006.dconstruct.org/speakers/ d.Construct 2006 conference speakers list] is implemented using hCards.
* [http://local.yahoo.com Yahoo Local] now supports hCards for business and places in the search results
* [http://learningtheworld.eu/imprint/ Learning the World] has hcard information on the imprint, alas we didn't succeed to mark-up the work phone and fax numbers properly.
* The [http://www.fuckparade.org F’parade] website uses hcard, though I didn't find a type to distinguish mobile and landline phone numbers.
* [http://www.miranet.nl/contact.htm Miranet Webdesign] have added a hcard to their [http://www.miranet.nl/contact.htm 'contact' page]
* [http://weblog.200ok.com.au/ Ben Buchanan] has added a vCard to the [http://weblog.200ok.com.au/about/ 'About' page on The 200ok Weblog]
* [http://www.radiantcore.com Radiant Core] has their contact information [http://www.radiantcore.com/contact/ available in hCard].
* [http://www.mikerumble.co.uk/ Mike Rumble] has [http://www.mikerumble.co.uk/contact.html uploaded his hCard].
* [http://www.saumag.edu/ Southern Arkansas University] has its contact footer encoded as hCard
* [http://main.uab.edu/ University of Alabama at Birmingham] has its contact footer encoded as hCard
* [http://www.capital.edu Capital University] has contact footer and bloggers' names encoded as hCard. Also, all page-specific contact information is encoded as hCards (see [http://www.capital.edu/Internet/Default.aspx?pid=67 Admissions] page for an example)
* [http://main.uab.edu/shrp/ UAB School of Health Professions] uses hCard in its contact footer
* [http://green.carisenda.com/ Stephen Stewart] has his hCard on the front page of his weblog ('You are here' section)
* [http://www.fberriman.com/ Frances Berriman] has a hidden vCard in the footers of her website.
* [http://www.candlescience.com/ CandleScience Candle Supply] added a hidden hcard sitewide.
* [http://www.direction.es/ Direction] uses hCard for contact information.
* [http://audiobank.tryphon.org AudioBank] uses hCard to display member informations.
* [http://www.vivabit.com/atmedia2006/speakers/ @media speakers] are marked up with hCard (photos depend on BASE tag support which makes this a good test case)
* [http://www.dougransom.com Doug Ransom] uses hCard for his financial advisory practice.
* [http://rubyandrails.org/usergroups/newcastle/members.html ncl.rb] uses hCard for contact information.
* [http://www.snowinteractive.com/ Snow Interactive] uses hCard for contact information.
* [http://flickr.com Flickr] now supports [[hcard|hCard]] and [http://gmpg.org/xfn XFN] on profile pages. See [http://flickr.com/photos/factoryjoe/113866484/ screenshot of Flickr UI in Flock browser using Flocktails extension - March 17th 2006].
* [http://www.ndiyo.org/contact Contact information for the Ndiyo project]
* [http://www.pixelenvy.co.uk/ Pixel Envy] uses hCard for contact information on every page
* [http://stilbuero.de/contact/ Klaus Hartl] uses hCard in the sidebar for contact information (maybe easier to parse through delivering xhtml as xml).
* [http://charlvn.virafrikaans.com/contact Charl van Niekerk's hCard]
* [http://billy-girlardo.com/WP/ BillyBLOGirlardo] uses hCard for contact information.
* [http://www.hicksdesign.co.uk/ Hicksdesign] uses hCard for contact information.
* http://www.gr0w.com/articles/press/growsearch_launched_press_release/ - hCard in a press release for the press contact info
* http://www.redmonk.com/cote/archives/2006/03/testing_out_mic.html - hCard with explanation
* [http://andy.ciordia.info/ it's my island], personal blog, hcard on the ''[http://andy.ciordia.info/pages/about_me About the Writer]'' page. [[User:Ciordia9|Andy Ciordia]]
* [http://www.windowonwoking.org.uk/ Window on Woking], a local community site in the UK, uses hCard in the homepage of each member organisation and local Councillor.
* [http://ChunkySoup.net/ ChunkySoup.net] has redesigned using hAtom 0.1 and hCards on the entire site -- by [[User:ChrisCasciano|Chris Casciano]]
* [http://www.30boxes.com/ 30 Boxes],a social calendar application and digital lifestyle aggregator, automatically creates an hcard for you with your account. It is found under Settings > Syndication.
* [http://www.nearwhere.com/ Nearwhere.com] allow you to put an hcard on an interactive map.
* [http://www.brentozar.com/ Brent Ozar] added a [http://www.brentozar.com/contact.php contact] page hCard.
* [http://www.kerihenare.com/ Keri Henare] has rewritten his [http://www.kerihenare.com/contact/ contact] page hCard. Now using <code><object></code> instead of <code><img></code> for photo. (Thanks Brian Suda for updating the vCard converter)
* [http://michaelraichelson.com/contact/ Michael Raichelson] had an hCard on his contact page before SXSW, but never thought to add it here until Tantek requested it.
* [http://www.commoner.com/~lsimon/lindsey_simon_hcard.html Lindsey Simon] has added an hCard to his website as per Tantek's SXSW request for folks to try it
* [http://www.davidgagne.net/ David Gagne] has an hCard in his sidebar.
* [http://www.churchzip.com/map/ Churchzip.com/map] and [http://www.skiwhere.com/map/ Skiwhere.com/map], provide churches, hotels, and ski resorts on the same maps. Locations are formatted as hcards.
* All [http://www.iqdir.com/ IQ Directory Solutions] Yellow Pages web portals use [[hcard|hCard]] markup on listings. For example [http://www.yellowpages-cambodia.com/ Cambodia Yellow Pages] and [http://www.superpages.com.my/ Malaysia Super Pages]
* Ning's cloneable Group app uses fuzzy matching to map custom fields to [[hcard|hCard]] markup on its [http://group.ning.com/index.php?controller=person&action=view&content=JonathanAquino profile] pages.
* [http://claimid.com/factoryjoe Chris Messina' ClaimID hCard]
* [http://factoryjoe.com/blog/hcard Chris Messina' hCard]
* [http://flock.com/about Flock About]
* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* [http://www.gr0w.com/articles/press/growsearch_launched_press_release/ GrowSearch Launched (Press Release)] uses an hCard to provide Press Contact Point.
* The [http://www.arborday.org/ National Arbor Day Foundation] has started using hCards for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] has numerous hCards, especially on the [http://www.multipack.co.uk/members/ members page], as well as the next meeting information.
* [http://deadringrancor.livejournal.com/ Justin McDowell] used an hCard when [http://deadringrancor.livejournal.com/221332.html referring to a person in his blog post]
* [http://davecardwell.co.uk/cv/ Dave Cardwell] has included his hCard in his Curriculum Vitae.
* [http://blog.usweb.com/ Shaun Shull] has written a great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], and has included his [[hcard|hCard]] as one of the examples.
* [http://www.thefutureoftheweb.com/ Jesse Skinner] has written a simple [http://www.thefutureoftheweb.com/blog/2006/1/hcard tutorial with examples]
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the venue, contacts, and program committee members all with hCard.
* [http://www.avf-nexus.co.uk AVF-Nexus] have a hCard on their [http://www.avf-nexus.co.uk/contact/ contact page] - (by [http://creation.uk.com Creation"])
* [http://www.thefantasticos.com/andrew/ Andrew White] posted [http://www.thefantasticos.com/andrew/index.php/my-hcard/ his hCard] and [http://www.thefantasticos.com/andrew/index.php/62/microformats-the-should-have-been-obvious-web-dev-tool/ blogged about it].
* [http://www.2sheds.ru Oleg "2sheds" Kourapov] in his [http://www.2sheds.ru/blog/ blog] ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog X2V]) has turned personal profile into hCard ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/hcard.html X2V]) and his blogroll - into combination XFN/hCards ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/friends.html X2V])
* [http://www.approveddesign.co.uk Approved Design Consultancy] have a hCard on their [http://www.approveddesign.co.uk/about/contact/ contact page] as well as on their [http://www.approveddesign.co.uk/about/people/ people section] - (by [http://creation.uk.com Creation"])
* [http://weblog.200ok.com.au/ Ben Buchanan] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin Morris] have [http://weblog.200ok.com.au/2006/01/griffith-phonebook-adds-hcard-and.html implemented hCards and vCards] for the [http://www.griffith.edu.au Griffith University] [http://www.griffith.edu.au/find/content_phonebook.html online phone book]. Eg. [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=ben+buchanan&format=search Ben's vCard] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin's vCard]
* WWF-Australia [http://wwf.org.au/about/contactdetails/ contact details page]
* [http://rasterweb.net/raster/ Pete Prodoehl] used the hCard format on his [http://rasterweb.net/raster/contact.html Contact page]
* [http://alexander-mette.de amette] uses the hCard format in a module of his TikiWiki powered blog
* [http://staff.washington.edu/oren/weblog2/ Oren Sreebny] has an hcard on his blog main index template
* [http://www.cs.brandeis.edu/~zippy/ Patrick Tufts] has an hCard on his homepage.
* [http://ascii20.blogspot.com/ Mathias Kolehmainen and Jamie Taylor] have hCards on their weblog.
* [http://www.hoppsan.org/jamesb/blogger/ Barnaby James] has a hCard on his weblog.
* [http://esa-education.com/schools/map ESA Education] Uses hCards for their 100+ schools and each of the individual school sites.
* [http://www.thereisnocat.com/#vcard Ralph Brandi] has added an hCard to the sidebar of his weblog as a result of Tantek Çelik's portion of the Microformats presentation at SXSW 2006.
* [http://www.pierce.ctc.edu/ephone/ Pierce College] -- community college directory uses hCard on all individual directory entries.
* [http://www.ukoln.ac.uk/web-focus/events/workshops/webmaster-2006/ the Institutional Web Management Workshop 2006] have marked up all their [http://www.ukoln.ac.uk/web-focus/events/workshops/webmaster-2006/committee/ speakers with hCard].
* http://wikitravel.org/en/Singapore/Sentosa. Wikitravel is experimenting with hcard on its travel guides. This guide uses hcard for all its business listings. More info on http://wikitravel.org/en/Wikitravel_talk:Listings.
* [http://www.musik-erber.de/ Musik-Erber] uses to present contact information at the sidebar
* [http://cdevroe.com/about/#contact Colin D. Devroe] uses hCard to display his contact information on his about page
* The ECS (Scool of Electronics and Computer Science at the University of Southampton) [http://www.ecs.soton.ac.uk/people People Pages] use vCard. Contact cjg@ecs.soton.ac.uk if there's any bugs.
* [http://www.southwestern.edu/~ramseyp Pat Ramsey] has his contact information on his blog marked up with hCard. Contact [mailto:ramsey.pat@gmail.com ramsey.pat@gmail.com] if there are any bugs there.
* [http://www.meryl.net/ Meryl K. Evans] has a hidden hCard on her homepage.
* [http://www.vyre.com/company/contact-us/ VYRE] is a CMS development company with a "contact us" hCard
* [http://www.lefdal.cc/info.php Alf Kåre Lefdal] uses hCard in the markup of his contact information
* [http://www.pignwhistle.com.au/ Pig N Whistle, a chain of pubs in Brisbane, Australia] is using hcard to mark up all the contact pages for its outlets and head office
* [http://kollitsch.de/ Patrick Kollitsch] has built his personal Profil as hCard
* [http://www.hbs.edu/faculty/dspar/ Harvard Business School] has hCards on their faculty pages
* [http://openmikes.org/ openmikes.org] uses hCards for open mike venue addresses in its listing detail pages.
* [http://www.intertecnollc.com/ InterTecno, LCC] publishes an hCard on the home page and contact page.

=== Examples ===
* [http://shiftingpixel.com/about/the-artist shifting pixel photoblog] has published an hCard.
* [http://thoughtport.blogspot.com/ Aiden Kenny] hasn't published his hCard yet, but he has [http://thoughtport.blogspot.com/2005/07/elemental-particles-of-web.html published his hCard icon]: http://photos1.blogger.com/blogger/4224/444/320/AK-Hcard-icon.gif
* [http://thedredge.org Andy Hume] uses hCards to mark-up the names and URLs of commentors on his blog, e.g. his [http://thedredge.org/2005/06/using-hcards-in-your-blog/ blog post on "Using hCards in your blog"].
* [http://www.bidclix.com/ BidClix]'s [http://www.bidclix.com/AboutContact.html Contact BidClix] page has it's ''contact info'' marked up with an hCard.
* [http://suda.co.uk/ Brian Suda] has managed to embed a photo in [http://suda.co.uk/contact/ his hCard] through the [http://www.ietf.org/rfc/rfc2397.txt data uri scheme] by converting the image to BASE64 code. View the Source to see how this is accomplished. [http://suda.co.uk/projects/X2V/get-vcard.php?uri=http%3A//suda.co.uk/contact/ The X2V link] will extract the image and encode it for a vCard which will be displayed in some address book applications.
** Inspired by this I thought to try the same for SVG at [http://barefoot-ceramics.com/find Barefoot] ...
** <img class="photo" style="display:none;" src="data:image/svg+xml;text,<?xml version='1.0' encoding='UTF-8' standalone='no'?><svg xmlns:svg='http://www.w3.org/2000/svg' xmlns='http://www.w3.org/2000/svg' version='1.0' width='50' height='80' id='svg3957'><defs id='defs3959' /><path d='M 28.91433,...32.192802 z' style='fill:#cc4d00;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.625;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1' id='path9551' /></svg>" alt="Barefoot">
** Does it work?? Well it parses OK. Some automated tools replace the < with %3C (etc., eg Brian Suda's vcard form). Unfortunately Kontact (KDE contacts tool) doesn't handle SVG as a vCard photo or logo format - I don't know if this is a standard. It seems it could work and maybe even does somewhere. Maybe the text field needs to be Base64 encoded? ... see [http://slashdot.org/~pbhj/journal/142382 pbhj's slashdot journal] for a bit more on this.
* [http://cinematreasures.org Cinema Treasures] uses hCard to markup venue information for 10,000+ movie theaters.
* [http://www.w3.org/People/Connolly/events/ Dan Connolly's index of events and talks] has hCards for many of the people he has met at those events. In Mar 2006, he moved a bunch of hotel contact info from his PDA to this page; it's now up to 32 hCards.
* [http://doncrowley.blogspot.com/ Don Crowley] has published [http://www.crowley.nl/hcard.html his hCard] as well as a nifty hCard button: http://www.crowley.nl/images/hcard.png
* [http://loadaveragezero.com/hnav/contact.php Douglas W. Clifton] added all types of contact information
* [http://eventful.com Eventful] publishes all of its venue information pages with embedded hCards.
* [http://www.iowamilitaryveteransband.com/members/ Iowa Military Veterans Band Contacts] - 95 hCards [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ marked up by Scott Reynen]
* [http://JackWolfgang.blogspot.com Jack L. Wolfgang II] has [http://jack.randomata.com/resume/ converted the addresses in his resume to hCards].
* [http://www.efas.fupl.asso.fr/efas/_Mathieu-Drouet_.html Mathieu Drouet] and [http://www.efas.fupl.asso.fr/efas/_Annie-Leger_.html Annie Leger] both have hCards
* [http://www.ndunn.com Neil Dunn] has published his rather [http://www.ndunn.com/2005/10/7/hCard good looking hCard]
* [http://www.oliverbrown.me.uk/ Oliver Brown] has published his hCard.
* [http://www.paradigmproductions.org/contact/ Paradigm Productions] published a vcard as a ul (marked up by [http://www.linkingarts.com/ Peter Jacobson])
* [http://www.splintered.co.uk/ Patrick H. Lauke] has marked up [http://www.splintered.co.uk/about/ his contact info with hCard].
* [http://blah Paul Schreiber has published his hCard on [http://paulschreiber.com/about/?contact his about page].
* [http://paulschreiber.com/blog/ Paul Schreiber]'s [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCards for upcoming artists, as well as an hCard for the page itself. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCards for all past artists.
* [http://www.paulmichaelsmith.com/blog/hcard.htm Paul Smith] has created an hCard page which is Human Readable, and a link to X2V passing the same hCard page to generate a vCard.
* [http://www.windley.com/archives/2005/07/hcards_trying_o.shtml Phil Windley has published] [http://phil.windley.org/hcard.html his hCard].
* [http://www.go-curiosity.com/about.htm Piercarlo Slavazza] has published an hCard.
* [http://zooibaai.nl/ Rob Mientjes] has published his hCard on [http://zooibaai.nl/about/ his about page].
* [http://rbach.priv.at/Contact Robert Bachmann] has published his hCard and [http://rbach.priv.at/Images/hcard a button].
* [http://blah Scott Reynen has published his hCard on [http://www.randomchaos.com/document.php?source=scott_reynen his profile page].
* [http://www.stackframe.com/ StackFrame, LLC] has published [http://www.stackframe.com/people/ employee] and [http://www.stackframe.com/contact/ general] contact information as hCards.
* [http://www.wolfsreign.com Steven Ametjan] has published his hCard on [http://www.wolfsreign.com/about/ his about page].
* [http://tantek.com/microformats/2005/syndicate/speakers-list.html Syndicate - Speaker List] as a set of hCards
* [http://tagcamp.org/index.cgi?ContactList TagCamp contact list]
* [http://tantek.com/log Tantek's Thoughts] includes an inline author hCard at the bottom of the page.
* [http://technorati.com/ Technorati]'s [http://www.technorati.com/about/ About page] lists their '''Media Contact'''
* [http://www.deadringerart.com/ The Brothers McDowell] have hCards at their Contact page.
* [http://twinsparc.com/ Twinsparc] put an hCard in the header and footer of all their pages.
* [http://tantek.com/microformats/2005/web2/speakers.html Web 2.0 Conference speakers page marked up with hCard]
* [http://we05.com/ Web Essentials 05] marked up all their [http://we05.com/presenters.cfm presenters with hCard].

=== Examples with some problems ===

* [http://gbraad.nl/ Gerard Braad] has published an example on his [http://gbraad.nl/site/?p=profile profile] page that is almost consistent with his original [http://gbraad.nl/files/gbraad.vcf vCard] file. Also progress is made for transforming his [http://files.gbraad.nl/foaf.rdf FoaF] file to a hCard encoded representation. (also done for my spouse:[http://spouse.gbraad.nl/site/?p=profile Yong Yuan])
** (2005-09-27) PASSED, PASSED
** WARNINGS
*** uses 'n given-name' and 'n family-name' instead of nesting the given- and family- names inside the 'n'
*** has one 'tel' value with a bunch of values stuffed in
*** probably more problems --[[User:RyanKing|RyanKing]] 17:19, 5 Jan 2006 (PST)
* [http://kinrowan.net/ Cori Schlegel] [http://kinrowan.net/blog/wp/archives/2005/07/08/a-problem-with-the-structured-blogging-plug-in-for-wordpress/ discusses how he has updated] [http://kinrowan.net/blog/contact his contact page with hCard]
** INVALID - using 'prefix' instead of 'honorific-prefix' and type's in classnames (in both adr and tel) and has two photo's (the second could be 'logo') --[[User:RyanKing|RyanKing]] 15:15, 5 Jan 2006 (PST)
* The good ship [http://styrheim.com/test/leonid.html Leonid Miloslavskiy] spotted in the North Atlantic
** INVALID --[[User:RyanKing|RyanKing]] 00:50, 27 Oct 2005 (PDT)
*** class="family" should probably be family-name
*** the "n" property is missing and the "n" optimization can't be applied
*** the first geo propery is empty, the second one is invalid (ie, it doesn't contain lat/long)
* [http://landsbank.fo/#hCard Landsbanki Føroya]
** INVALID - using embedded rdf/xml invalidly
* [http://chrischerry.name/blog/contact/ Chris Cherry's contact page with his hCard]
** WARNING - uses class="cell" instead of <span class="type">cell</span>
* [http://www.bath.ac.uk/contact/ University of Bath] Person Finder results are encoded with hCards so you can easily create a vCard from any result.
** ERROR - attempt to use Implied-N optimization where that's not possible. --[[User:RyanKing|RyanKing]] 14:29, 5 Jan 2006 (PST)
** Error appears for external users only. Won't be fixed any time soon. -- [[User:PhilWilson|PhilWilson]] 00:03, 28 Jan 2006 (GMT)
* [http://richi.co.uk/blog/2005/12/structured-blogging.html Richi Jennings] has put up his attempt
** INVALID, missing FN --[[User:RyanKing|RyanKing]] 12:47, 5 Jan 2006 (PST)
* [http://www.yellowpencil.com/contact/ Yellow Pencil] Using microformats to present company contact information
** First hcard has empty "fn" and no "n". "fn" should be with "org" -- [[User: ScottReynen |ScottReynen]] 21:29, 19 Jun 2006 (CST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCards. If you have an hCard implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.
*[http://elbewerk.com/2006/09/vcardexplorer-02.shtml vCardExplorer 0.2] is a Mac OS X Application, that displays VCF-Files and extracts hCards from Websites written by Daniel Kagemann.
* [http://placenamehere.com/mf/nnwextract/ Extract Microformats] is a script for NetNewsWire that supports extracting hCard and hCalendar data in blog posts (via technorati service). Written by [[User:ChrisCasciano|Chris Casciano]]
* [http://allinthehead.com/hkit/ hKit] is an open source PHP 5 parsing library with support for hCard.
* [http://kitchen.technorati.com/search Technorati Microformats Search] indexes [[hcard|hCard]], [[hcalendar|hCalendar]], and [[hreview|hReview]] as [http://tantek.com/log/2006/05.html#d31t1802 announced by Tantek].
** list of pages with indexing Issues so they can be looked into as to why data is not being extracted
** suda.co.uk/contact
** multipack.co.uk

* [http://www.webstandards.org/action/dwtf/microformats/ Dreamweaver Extension suite] from the [http://webstandards.org/ Web Standards Project] enables the authoring of hCards from within Dreamweaver 8.
* [http://scooch.gr0w.com/ Scooch] is a slide show and presentation creator that generates a [[hCard]] for individual slide show authors and comment authors with a CSS button to parse and download via [http://suda.co.uk/projects/X2V/ X2V]. Also uses [[hReview]] for slide ratings and [[rel-tag]] for categories.
* [http://blog.codeeg.com/2006/03/20/flock-tails-flocktails/ Flocktails] - port of Tails extension for Flock 0.5.12 that looks for hCards, hCalendar, xFolk and hReview and tosses them into a handy topbar
*[http://opensource.reevoo.com/2006/03/08/release-uformats-12/ uformats] is a ruby library that can parse [[hCalendar]], [[hCard]], [[hReview]] and [[rel-tag]]
* [http://blog.codeeg.com/tails-firefox-extension/ Tails] is a Firefox Extension that will display the presence and details of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage. [https://addons.mozilla.org/firefox/2240/ Tails Export] is an extended version.
* [http://www.stripytshirt.co.uk/features/firefox/smartzilla Smartzilla is a Firefox Extension] that finds hCards on web pages and lets you add them to your addressbook.
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCard and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* There is [http://flickr.com/photos/factoryjoe/68755089/ evidence of built-in hCard support in the Konqueror browser]. Specifically, Konqueror 3.5, in KDE 3.5 (kubuntu Breezy w/ update).
* There is [http://tagcamp.org/index.cgi?ContactList evidence of a kwiki plugin for hCards]. Update: the [http://svn.kwiki.org/cwest/Kwiki-hCard/ hCard kwiki plugin svn repository]. See the [http://microwiki.caseywest.com/index.cgi?hCard documentation of the hCard kwiki plugin].
* [http://suda.co.uk/projects/X2V/ X2V] is a bookmarklet that parses hCard and produces a .vcf (vCard) stream. Note: needs to be updated as the spec is refined
* [http://www.stripytshirt.co.uk Duncan Walker] has built [http://www.stripytshirt.co.uk/features/firefox/smartzilla a Firefox extension] that gets hCard data from a webpage, uses Brian Suda's XSL (locally) to transform it to vcard format and opens the resulting .vcf file.
* [http://george.hotelling.net/90percent/ George] has written a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script] that detects hCards and allows users to easily add them to their address book application. Relies on the X2V web service to do the conversion.
* [http://inside.glnetworks.de/ Martin Rehfeld] has updated the work of [http://blogmatrix.blogmatrix.com/ David Janes] and produced a [[Greasemonkey]] [http://inside.glnetworks.de/2006/06/05/microformats-have-arrived-in-firefox-15-greasemonkey-06/ script] that finds many microformat elements, including hCards, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003379 provides a popup menu of actions]. The hCard to vCard conversion is done internally within the script. ''This will work with FireFox 1.5+/GreaseMonkey 0.6.4+ now.''
* [http://diveintomark.org/ Mark Pilgrim] has also written an [http://diveintomark.org/projects/greasemonkey/hcard/ hCard parser Greasemonkey user script]. It is self-contained and does not rely on the X2V web service.
* [http://www.oliverbrown.me.uk/2005/09/03/a-working-microformats-extension-to-simplexml/ Oliver Brown] has written an "extension" to [http://www.php.net/simplexml SimpleXML] that gives simple access to hCard information in PHP 5.
* [http://thedredge.org/ Andrew D. Hume] has built a system (Wordpress plugin?) for [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hcards in your blog] to represent people leaving comments on blog posts.
* The [http://tantek.com/microformats/hcard-creator.html hCard creator] is a very simple, yet illustrative, open source user interface / form / script which creates an hCard in real-time as you type in a set of contact information.
* [http://greenbytes.de/tech/webdav/rfc2629.xslt rfc2629.xslt] now attempts to generate hCard information ([http://ietf.org/rfc/rfc2629 RFC2629] is an XML format for authoring RFCs and Internet Drafts, see [http://greenbytes.de/tech/webdav/rfc2629xslt/rfc2629xslt.html example document])
* [http://tantek.com/microformats/buddylist2hcards.html iChat buddy list to hCards] - Open source AppleScript to automatically convert one's buddy list in the MacOSX iChat AIM client into a valid XHTML 1.0 Strict list of hCards.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] is a collection of palmpilot and sidekick tools. It includes X2V derivatives xhtml2hcard.xsl and toICal.xsl plus some [http://dev.w3.org/cvsweb/2001/palmagent/hcardTest.html hcardTest] materials
* [http://www.openpsa.org/ OpenPsa 2.x] CRM application uses hCard for all person listings. The widget is [http://www.midgard-project.org/midcom-permalink-922834501b71daad856f35ec593c7a6d reusable across Midgard CMS]
* [http://www.metonymie.com Emiliano Martínez Luque] has written an experimental [http://www.metonymie.com/hCard_extract/app.html hCard finder and structured search application] that finds hCards within a given set of URLs and returns the ones that match the specified search criteria.
* [http://randomchaos.com/microformats/base/ Microformat Base] is an open-source PHP microformat aggregation crawler, currently recognizing hreview, hcalendar, and hcard.

== Additional Applications ==
This section is '''informative'''.

There are numerous potential additional uses and applications for hCards on the Web. The following are merely a few thoughts and possibilities that folks have come up with:

* As an open standard/format for [http://www.gravatar.com/ Gravatars].
* Marking up individual authors of blog posts on a group blog
* Marking up people's names and URLs in a blogroll
* Any reference to people in blog posts (e.g. when citing them, or referencing them, or describing them, by name).
* ...

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426]

=== Informative References ===
* [http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426]
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcard hCard term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* Contributed from http://developers.technorati.com/wiki/hCard.
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Specifications That Use hCard ====
* [[adr]]
* [[geo]]
* [[hcalendar|hCalendar]]
* [[hreview|hReview]]

==== Similar Work ====
* [http://www.intertwingly.net/wiki/pie/PaceBetterPersonElement Atom PaceBetterPersonElement]
* [http://www.jabber.org/jeps/jep-0054.html JEP-0054: vcard-temp]

== Related Pages ==
* [http://microformats.org/code/hcard/creator hCard creator] ([[hcard-creator-feedback|feedback]]) - create your own hCard.
* [[hcard-authoring|hCard authoring]] - learn how to add hCard markup to your existing contact info.
* [[hcard-faq|hCard FAQ]] - If you have any questions about hCard, check here, and if you don't find answers, add your questions!
* [[hcard-parsing|hCard parsing]] - Normatively details of how to parse hCards.
* [[hcard-issues|hCard issues]] - Please add any issues with the specification to the issues page.
* [[hcard-profile|hCard profile]] - The XMDP profile for hCard

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.

* [[hcard-brainstorming|hCard Brainstorming]] - where we are keeping our brainstorms and other explorations relating to hCard
* [[hcard-tests|hCard tests]] - a wiki page with actual embedded hCards to try parsing.

== Further Reading ==
* [http://www.digital-web.com/articles/microformats_primer/ Digital Web Magazine: Microformats Primer] by Garrett Dimon has a good intro to hCard
* [http://24ways.org/advent/practical-microformats-with-hcard Practical Microformats with hCard] by Drew McLellan
* [http://thedredge.org/ Andrew D. Hume] has written a blog post on [http://usabletype.com/articles/2005/usable-microformats/ usable microformats] which discusses hCard
* [http://www.thefutureoftheweb.com/blog/2006/1/hcard Jesse Skinner's introduction to hCard]
* [http://blog.usweb.com/ Shaun Shull's] great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], including his [[hcard|hCard]] as an example.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page] and the [http://technorati.com/tags/hcard hCard tag]

presentations

2006-06-09T10:40:39Z

Raster: Added June 8th presentation

<h1> microformats presentations </h1>

This page lists various presentations, sessions, papers and posters which have provided explanations and discusions of both [[microformats]] in general, and specific microformats. Check out microformats [[events]] for upcoming presentations. See also microformats [[podcasts]] and [[screencasts]] for audio/video presentations and discussions.

Most recent presentations/sessions listed first.

== 2006 ==
* June 8, Pete Prodoehl presented [http://rasterweb.net/raster/presentations/microformats-20060608/ Microformats] to the Milwaukee Web Design Meetup Group
* May 25, Brian Suda and Ryan King presented [http://theryanking.com/presentations/2006/www/ Practical Microformats] at WWW 2006 ([http://www.molly.com Molly Holzschlag] was orginally scheduled to give this talk, we filled in at the last minute with our slides from XTech)
* May 24, Kevin Lawver presented [http://presentations.lawver.net/standards/a_microformat_and_proposal_for/ A Microformat and Proposal For Interoperable Widgets]
* May 18, [http://xtech06.usefulinc.com/schedule/paper/148 The Intelligent Design of Microformats] by Ryan King at XTech 2006. ([http://theryanking.com/presentations/2006/xtech/talk/ slides]).
* May 16, [http://thebigjc.org/articles/2006/05/16/is-web-2-0-changing-the-software-industry Is Web 2.0 Changing the Software Industry?] by Chris Messina at [http://meshconference.com Mesh Conference]
* May 16, [http://theryanking.com/presentations/2006/xtech/tutorial/ Microformats from the Ground Up] by Brian Suda and Ryan King @ XTech 2006
* April 25, At [http://barcamp.org/TorCampDemoCamp5 DemoCamp #5 in Toronto], [http://blog.davidjanes.com David Janes] demonstrated [http://www.blogmatrix.com/ BlogMatrix] his platform for publish which supports microformats. (see [http://accordionguy.blogware.com/blog/_archives/2006/4/26/1913279.html Accordionguy blogpost]).
* April 23, [http://jazkarta.com/presentations/microformats.pdf/view Microformats and the Future of Syndication] by Nate Aune, AdaptiveWave (CM Pros Summit, San Francisco, CA)
* April 22, Intro to Microformats, [http://barcamp.pbwiki.com/BarCampBangalore Barcamp Bangalore], Bangalore, India, (photos [http://flickr.com/photos/abgpt/133393564/ 1], [http://flickr.com/photos/abgpt/133393545/ 2], [http://flickr.com/photos/abgpt/133393626/ 3])
* March 16, [http://ono.cdlib.org/archives/shimenawa/000219.html Reading 2.0] (see [http://radar.oreilly.com/archives/2006/03/link_list_reading_20_1.html Tim O'Reilly's notes]), San Francisco, CA
** Building with MicroFormats, [http://www.chaddickerson.com/blog/2006/03/17/reading-20-and-microformats/ Chad Dickerson], Yahoo
* March 13, SXSW Interactive, Room 17AB, Austin Convention Center, Austin, TX
** [[events/2006-03-13-sxsw-microformats|Microformats: Evolving the Web]], 11:30am-12:30pm
* March 11, SXSW Interactive, Room 17AB, Austin Convention Center, Austin, TX
** [http://tantek.com/presentations/2006/03/building-blocks Creating Building Blocks For Independents], 5pm-6pm
** [http://flickr.com/photos/tags/microformatssxsw photos]
* March 7, O'Reilly Emerging Technologies (ETech) Conference, Manchester Grand Hyatt, Ballroom, San Diego, CA
** [[events/2006-03-07-etech-microformats|Microformats intro and lightning demos at O'Reilly ETech conf.]], 5:30pm-6:15pm
** [http://flickr.com/photos/tags/microformatsetech photos]
* March 1, W3C Technical Plenary Day, Hotel Sofitel Cannes Mandelieu Royal Casino, main auditorium, 605 avenuedu Général de Gaulle, BP 49, MANDELIEU LA NAPOULE CEDEX, 06212 MANDELIEU LA NAPOULE, FRANCE
** [[events/2006-03-01-w3c-plenary-microformats|Microformats panel at W3C Technical Plenary Day]], 10:30am-11:30am
*** Ian Hickson (Google) - "A billion documents and no semantics anywhere" (NEED LINK TO SLIDES OR STUDY)
*** Tantek Çelik (Technorati) - "[http://tantek.com/presentations/2006/03/what-are-microformats/ What are microformats?]"
*** Håkon Wium Lie (Opera) - "Cascading Markup Languages — boom!" (NEED LINK TO SLIDES)
*** Rohit Khare (CommerceNet) - "[http://labs.commerce.net/~rohit/Angstro-W3C-TP/ Where Angle Brackets Fear to Tread]"
*** Dan Connolly (W3C) - "[http://www.w3.org/2003/g/talk62/slides Microformats for practical Semantic Web deployment]"
*** Q&A
**** "I'm very excited about '''microformats'''. What I really want is to get all the data out of databases and expressed as part of the Semantic Web." - Tim Berners-Lee. ('''emphasis''' added)
** "Services and the Web" by Mark Nottingham (Yahoo), 12:05pm-12:10pm.
*** Request to W3T/W3M: Go After The "Real" Web: Apache, PHP, Mozilla, Intermediaries and Caches, '''Microformats''', JSON... ('''emphasis''' added)
** Attendees voted the "Microformats" session the best session of the Plenary Day. 6:17pm.
* February 24, Yahoo Speakers Series, Yahoo Mission College Campus, 2nd floor conference room, 2821 Mission College Blvd., Santa Clara, CA 95054
** [http://tantek.com/presentations/2006/02/microformats-evolution/ Microformats: Evolving the Web]
* January 18, Apple Web Publishers internal meeting, Apple Computer, Star Trek conference room, 1 Infinite Loop, Cupertino, CA 95014, 12-1:40pm
** [http://tantek.com/presentations/2006/01/microformats-evolution/ Microformats: Evolving the Web]
* January 10, SD Forum Emerging Technologies SIG, Room H1, Cubberley Community Center, Palo Alto, CA, 7-9pm
** Ryan King's presentation, Ernie Prabhakar's presentation, Rohit Khare's presentation
** Microformats panel: Ryan King, Ernie Prabhakar, Rohit Khare, Tantek Çelik, Kevin Marks

== 2005 ==
* December 15, Syndicate Conference, San Francisco, CA
** [http://tantek.com/presentations/2005/12/syndicate-microformats/ Microformats - Emerging syndication types]
* November 26, [http://barcamp.org/index.cgi?TorCamp TorCamp], Teehan+Lax, 460 Richmond St. W, Toronto, ON, CA
** [http://www.davidjanes.com/docs/2005.11.25%20Microformats%20Presentation.ppt powerpoints] (sorry)
** [http://blog.davidjanes.com/mtarchives/2005_12.html#003467 photo]
* November 12, THINK Conference, Santa Cruz room, Chaminade hotel, Santa Cruz, CA, USA
** [[presentation-think-2005-11-12]]
* November 10, (location unknown), by Kevin Yank of SitePoint Pty. Ltd.
** [http://www.sitepoint.com/examples/innovation-on-standards/ Innovating on top of standards - Not around them]
* October 5, [http://web2con.com Web 2.0 Conference], Olympic Room, Argent Hotel, San Francisco, CA, USA
** [http://tantek.com/presentations/2005/10/microformats-examples/ Microformats Examples]
* October 4, [http://osafoundation.org/ OSAF], San Francisco, CA, USA
** [http://tantek.com/presentations/2005/10/microformats-evolution/ Microformats: Evolving the Web]
* September 30, [http://we05.com/ Web Essentials 05], Guthrie auditorium, University of Technology, Sydney, Australia
** [http://tantek.com/presentations/2005/09/microformats-evolution/ Microformats: Evolving the Web] ([http://we05.com/podcast/mp3/we05-14-tantek-celik2.mp3 MP3 - incomplete])
* September 29, [http://we05.com/ Web Essentials 05], Guthrie auditorium, University of Technology, Sydney, Australia
** [http://tantek.com/presentations/2005/09/elements-of-xhtml/ The Elements of Meaningful XHTML] ([http://we05.com/podcast/mp3/we05-2-tantek-celik.mp3 MP3])
* September 25, [http://webzine2005.com/ Webzine 2005], Valhalla Room, Swedish American Hall, San Francisco, CA, USA
** [http://theryanking.com/presentations/2005/webzine/ Microformats @ Webzine 2005]
* September 21, Web Intelligence Conference, Compiegne, France
** [http://moloko.itc.it/paoloblog/presentations/presentation_wi05/presentation_wi05.html Page-reRank: using trusted links to re-rank authority] ([http://sra.itc.it/people/massa/publications/wi05_page_rerank_massa_hayes.pdf paper]) - A discussion of using [[vote-links]] to improve [http://www-db.stanford.edu/~backrub/google.html PageRank]
* June 20: Supernova 2005 ([http://supernova2005.com/ Supernova2005 site]), Microformats [http://supernova2005.com/workshops.htm Workshop], Wharton West, Suite 500, San Francisco, CA, USA
** "[http://tantek.com/presentations/2005/06/what-are-microformats/ What are Microformats?]"
** "[http://homepage.mac.com/kevinmarks/supernovatags.html A microformat for tags]"

* May 14: Fourteenth International World Wide Web Conference ([http://www2005.org/ WWW2005]), 2005, Microformats Dev-Day Track, Makuhari Messe Room 303, Chiba, JAPAN
** "[http://tantek.com/presentations/2005/05/what-are-microformats/ What are Microformats?]"
** "[http://westciv.com/WWW2005/linkmf.html Link Microformats]"
** "[http://complexspiral.com/events/archive/2005/www2005/potential.html The Potential of Microformats]"
** "Distributed Social Networks (XFN Implementations)"
*** Demonstrations of [http://wordpress.org WordPress] & [http://metafilter.com Metafilter]'s builtin XFN support, and XFN search engines [http://rubhub.com/ RubHub] & [http://xhtmlfriends.net/ xhtmlfriends.net].
** "[http://tantek.com/presentations/2005/05/hcard-hcalendar/ People and Events (hCard & hCalendar)]"
** "[http://cnlabs.commerce.net/~rohit/hReview-in-Review/ hReview in Review]"
** "Bibliographies ([[hbib]])"
** "[http://westciv.com/WWW2005/xml2mf.html a more meaningful web with microformats]"
** "Semantic Web and Microformats" panel, Room 201

* March 15: "[http://tantek.com/presentations/2005/03/decentralizednetworks/ Decentralized Social Networks]", South by South West Conference (SXSW) 2005, Austin Convention Center Room 17AB, Austin TX

* March 14: "[http://2005.sxsw.com/interactive/conference/panels/?action=show&id=IAP0060 How to Trick-Out Your Blog]", South by South West Conference (SXSW) 2005, Austin Convention Center Room 16B, Austin TX

* March 13
** "[http://complexspiral.com/events/archive/2005/sxsw/ Emergent Semantics]", South by South West Conference (SXSW) 2005, Austin Convention Center Room 15, Austin TX
** "[http://tantek.com/presentations/2005/03/leveragingtags.html Leveraging Tags]", as part of the "How to Leverage Solipsism" panel, South by South West Conference (SXSW) 2005, Austin Convention Center Room 18A, Austin TX
** "[http://tantek.com/presentations/2005/03/elementsofxhtml/ The Elements of Meaningful XHTML]", South by South West Conference (SXSW) 2005, Austin Convention Center Room 16B, Austin TX

* January 21: [http://tantek.com/presentations/2005/01/attentionxml.html Attention.xml Technology Overview], private presentation, Yahoo! campus, Santa Clara, CA

== 2004 ==

* September 28: "[http://tantek.com/presentations/20040928sdforumws/semantic-xhtml.html Semantic XHTML: Can your website be your API? - Using semantic XHTML to show what you mean]", SD Forum Web Services SIG, eBay's Silicon Valley Conference Center 2161 North First Street San Jose, CA 95131

* September 12: "[http://wiki.oreillynet.com/foocamp04/index.cgi?MVCeqXHTMLCSSJS Model+View+Controller = XHTML+CSS+JS]", O'Reilly Media Foo Camp 2004, O'Reilly Campus, Wallcreeper room, Sebastopol CA

* September 11: "[http://wiki.oreillynet.com/foocamp04/index.cgi?AttentionXML Attention.XML]", O'Reilly Media Foo Camp 2004, O'Reilly Campus, Appaloosa room, Sebastopol CA

* September 10: "[http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats Simple Semantic Formats]", O'Reilly Media Foo Camp 2004, O'Reilly Campus, Camel room, Sebastopol CA

* March 15: "[http://tantek.com/presentations/2004sxsw/xfn.html Ridiculously Easy Social Software]", South by South West Conference (SXSW) 2004, Austin Convention Center Room 17B, Austin TX

* February 11th: "[http://www.tantek.com/presentations/2004etech/realworldsemanticspres.html real world semantics]", O'Reilly Emerging Technology Conference (ETech) 2004 Westin Horton Plaza, San Diego, CA. This presentation was the first public discussion and introduction of the terms "microformat" and "lowercase semantic web". Reprised as a five-minute lightning talk at [http://wiki.oreillynet.com/etech/index.cgi?ConCon ConCon], Rx Gallery, San Francisco CA (16 February 2004).

This page was contributed from [http://developers.technorati.com/wiki/MicroFormatsPresentations the Technorati developers wiki].

geo

2006-03-29T17:22:29Z

Raster: /* Examples in the wild */ added ocono.com example

<h1> geo </h1>

'''geo''' (working name, pronounced "gee-oh") is a simple format for marking up geographic latitude longitude information, suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. '''geo''' is a 1:1 representation of the "geo" property in the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in XHTML, one of several open [[microformats|microformat]] standards.
__TOC__

== Draft Specification ==

=== Editor/Author ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Copyright ===
{{MicroFormatCopyrightStatement2005}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to everyone who participated in the [[geo-bof-2005-06-30|Geo Microformat BOF at O'Reilly's Where 2.0 conference]], and in particular to [http://radar.oreilly.com/nat/ Nat Torkington] and Vee McMillen of [http://oreilly.com O'Reilly] for [http://conferences.oreillynet.com/cs/where2005/view/e_sess/7476 arranging and hosting the BOF]. Thanks to Chris Hibbbert for providing the [http://www.geocaching.com/seek/cache_details.aspx?guid=dc4754bf-64d5-4f28-8715-45ad2505c86f real world geo-caching example].

== Introduction and Background ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly and interoperably implemented (e.g. Apple's Address Book application). The [[hcard|hCard]] microformat has similarly received significant adoption, from numerous sites publishing the format, to hCard to vCard proxies, to clientside javascript parsers.

At the [http://conferences.oreillynet.com/where/ Where 2.0 conference] in June 2005, there was widespread recognition that the community needed a way to simply and easily publish visible, extractable, geographic location information on the Web, given how often bloggers, and numerous other sites publish such information. The [[geo-bof-2005-06-30|geo microformat BOF]] discussed this very topic, and concluded with a consensus decision to just try using ''geo'' from vCard/hCard.

This specification introduces the '''geo''' microformat, which is a 1:1 representation of the aforementioned ''geo'' property from the vCard standard, by simply reusing the ''geo'' property and sub-properties as-is from the [[hcard|hCard]] microformat.

Publishers can both embed '''geo''' addresses directly in their web pages and feeds, as well as markup existing addresses in the context of the rest of the information in their web pages and feeds.

If the publisher knows and is publishing the ''name'' of the location in addition to its geo lat/long, then the publisher MUST use [[hcard|hCard]] instead of just '''geo''' to publish the name and geo lat/long of the location.

If the publisher knows and is publishing the address of the location, OR if the address of the location was what was actually entered by a human, and the publisher simply turned that into lat/long using some sort of a service, then the publisher SHOULD use [[adr]] to publish the actual human entered address information since communicates far more semantic information than a simple geo lat/long coordinate.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== Singular Properties ===

Note that all the properties in '''geo''' are singular properties, and thus the first descendant element with that class should take effect, any others being ignored.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the <code>title</code> attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. For this purpose, the special class name <code>value</code> is used to excerpt out the subset of the element that is the value of the property. See [[hcard|hCard]] for details on this.

=== Root Class Name ===

The root class name for an geo location is <code>geo</code>.

=== Property List ===

This is the list of properties in geo, taken from [[hcard|hCard]]:

* latitude
* longitude

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]], with the only difference being that "geo" is the root class name, rather than "vcard".

== Examples ==

This section is informative.

=== Sample geo ===

Here is a sample of published lat/long info (from [http://www.geocaching.com/seek/cache_details.aspx?guid=dc4754bf-64d5-4f28-8715-45ad2505c86f geocaching: Noble Steed]):

<pre><nowiki>
N 37° 24.491 W 122° 08.313
</nowiki></pre>

With geo markup:

<pre><nowiki>
<div class="geo">
<abbr class="latitude" title="37.408183">N 37° 24.491</abbr>
<abbr class="longitude" title="-122.13855">W 122° 08.313</abbr>
</div>
</nowiki></pre>

This geo might be displayed as:

<abbr class="latitude" title="37.408183">N 37° 24.491</abbr>
<abbr class="longitude" title="-122.13855">W 122° 08.313</abbr>

=== More Examples ===

See [http://microformats.org/wiki/hcard-examples#3.2.1_GEO_Type_Definition hCard example geo] for more examples.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published geos, outside their normal context of hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc., in addition to [[hcard|hCard]] examples in the wild. If you find geos outside of hCards anywhere else, feel free to add them to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://ocono.com/ ocono.com] has marked each of it's "Upcoming Events" items with lat/long values.
* [http://harry.hchen1.com/mylife.htm Harry Chen has marked up his geo location]
* [http://www.multimap.com Multimap.com] uses the geo microformat to mark up latitude and longitude values on map pages.
* [http://rasterweb.net/raster/ Pete Prodoehl] geotags posts on his blog.

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse geos outside the context of hCards. If you have an geo implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://www.podster.de/page/geotest podster.de] finds geo markups in podcast RSS Feeds and maps soundseeing episodes on a map (German only)
* [http://blog.codeeg.com/ Calvin Yu] has written a [http://blog.codeeg.com/2006/01/28/using-microformats-to-plot-my-favorite-places/ web service that will allow you plot and describe places on a Yahoo Map easily] using [[hreview|hReview]] and [[geo]].
* [http://bluesmoon.blogspot.com/ Philip Tellis] has written a [http://bluesmoon.blogspot.com/2006/01/of-microformats-and-geocoding.html javascript to add maps to geo markup on pages]
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding geos and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* [http://bluesmoon.blogspot.com/ Philip Tellis] has written some javascript to [http://bluesmoon.blogspot.com/2006/01/of-microformats-and-geocoding.html convert the geo microformat to a google map] using [[geo]].

== References ==
=== Normative References ===
* [[hcard|hCard]]

=== Informative References ===
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426] ([http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426])
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]

=== Similar Work ===
* [[adr]]
* [[hcalendar|hCalendar]]
* [[XOXO]]

== Work in progress ==
This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added.

== Discussions ==

* See [http://www.technorati.com/cosmos/referer.html blogs discussing this page].

=== Q&A ===
* If you have any questions about hCard, check the [[hcard-faq|hCard FAQ]] first, and if you don't find answers, add your questions! (Odds are that any geo question will apply to hCard as well).

=== Issues ===
* Please add any issues with the specification to the separate [[hcard-issues|hCard issues]] document. Ditto.
* Proposals for changes, additions and other thoughts about [[geo]] may be found in the [[hcard-brainstorming|hCard brainstorming]] page.

== Additional Related Reading and Sites ==

* [http://www.census.gov/geo/www/tiger/tigermap.html TIGER Map Service]

hcalendar

2006-03-27T19:03:59Z

Raster: /* Examples in the wild */ added link to ocono.com

<h1> hCalendar </h1>

hCalendar is a simple, open, distributed calendaring and events format, based on the iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCalendar is one of several open [[microformats|microformat]] standards.

Want to get started with writing an [[hcalendar|hCalendar]] event? Use the [http://microformats.org/code/hcalendar/creator hCalendar creator] to write up an event and publish it.

__TOC__

== Draft Specification ==

; Editor : [http://tantek.com/ Tantek Çelik] ([http://technorati.com Technorati, Inc])
; Authors : [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
: [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to:
* Adam Bosworth for leading the [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation] which brought together a critical mass of interested parties.

== Introduction ==
The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), has been broadly interoperably implemented (e.g. Apple's "iCal" application built into MacOSX).

In addition, bloggers often discuss events on their blogs -- upcoming events, writeups of past events, etc. With just a tad bit of structure, bloggers can discuss events in their blog(s) in such a way that spiders and other aggregators can retrieve such events, automatically convert them to iCalendar, and use them in any iCalendar application or service.

This specification introduces the '''hCalendar''' format, which is a 1:1 representation of the aforementioned iCalendar standard, in semantic XHTML. Bloggers can both embed hCalendar events directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCalendar enables applications to retrieve information about such events directly from web pages without having to reference a separate file.

== Semantic XHTML Design Principles ==

{{semantic-xhtml-design-principles}}

== Format ==

=== In General ===

The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]) forms the basis of hCalendar.

Note: the editor and authors of this specification are tracking the [http://lists.osafoundation.org/pipermail/ietf-calsify/ "iCal-Basic" effort] and intend to base the core hCalendar profile on iCal-Basic. See references for a link to the current draft.

The basic format of hCalendar is to use iCalendar object/property names in lower-case for class names, and to map the nesting of iCalendar objects directly into nested XHTML.

=== More Semantic Equivalents ===

However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in iCalendar becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vevent"</code> in hCalendar.
* <code>ATTENDEE</code> in iCalendar may in hCalendar be represented by an [[hcard]].

=== Singular vs. Plural Properties ===

For properties which are singular (e.g. "N" and "FN" from vCard), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL" from vCard), each class instance should create a instance of that property. Plural properties with subtypes (e.g. TEL with WORK, HOME, CELL from vCard) can be optimized to share a common element for the property itself, with each instance of subtype being an appropriately classed descendant of the property element.

=== Human vs. Machine readable ===
If an <code><nowiki><abbr></nowiki></code> element is used for a property, then the '<code>title</code>' attribute of the <code><nowiki><abbr></nowiki></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value. This specification recommends that such <code><nowiki><abbr></nowiki></code> elements be used for the following iCalendar properties:
* DTSTART, DTEND, DURATION, RDATE, RRULE

== Example ==

Here is a sample event in an iCalendar:
<pre><nowiki>
BEGIN:VCALENDAR
PRODID:-//XYZproduct//EN
VERSION:2.0
BEGIN:VEVENT
URL:http://www.web2con.com/
DTSTART:20051005
DTEND:20051008
SUMMARY:Web 2.0 Conference
LOCATION:Argent Hotel\, San Francisco\, CA
END:VEVENT
END:VCALENDAR
</nowiki></pre>
and an equivalent event in hCalendar format with various elements optimized appropriately. See [[hcalendar-example1-steps]] for the derivation.

<pre><nowiki>
<span class="vevent">
<a class="url" href="http://www.web2con.com/">
<span class="summary">Web 2.0 Conference</span>:
<abbr class="dtstart" title="2005-10-05">October 5</abbr>-
<abbr class="dtend" title="2005-10-08">7</abbr>,
at the <span class="location">Argent Hotel, San Francisco, CA</span>
</a>
</span>
</nowiki></pre>
which could be displayed as:

[http://www.web2con.com/ Web 2.0 Conference: October 5-7, at the Argent Hotel, San Francisco, CA]

Note 1: The product information is not necessary since hCalendar is an interchange format. When transforming hCalendar back into iCalendar, the transforming engine should add its own product ID.

Note 2: A surrounding <code><nowiki><span class="vcalendar"></nowiki></code> element is optional, and is left out as such. It is optional since the context of a vcalendar is implied when a vevent is encountered. The implied context/scope is that of the document. Authors may explicitly use elements with class="vcalendar" to wrap sets of vevents that all belong to the same calendar, e.g. when publishing multiple calendars on the same page.

Note 3: The version information is unnecessary in hCalendar markup directly since the version will be defined by the profile of hCalendar that is used/referred to in the 'profile' attribute of the <head> element.

Note 4: ISO8601 dates (required by iCalendar) are not very human friendly. In addition, the year is often understood implicitly by humans from the context. Thus <code><nowiki><abbr></nowiki></code> elements are used to simultaneously provide a human friendly date and/or time in the visible contents of the element, while placing the respective machine parsable comprehensive ISO8601 datetime in the 'title' attribute.
The notation YYYY-MM-DD should be used for better readability.

Note 5: The difference between the DTEND ISO8601 date (2005-10-08) and the human readable date (7) is NOT a mistake. [http://lists.osafoundation.org/pipermail/ietf-calsify/2005-September/000769.html DTEND is exclusive], meaning, that the event ends just before the DTEND. Thus for events which start on one day and end on another day, the DTEND date must be specified as the day after the day that a human would say is the last day of the event.

See [[hcalendar-examples]] for more hCalendar examples

== Examples in the wild ==
This section is '''informative'''.

The following sites have implemented hCalendar, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If events on your pages are marked up with hCalendar, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.
* [http://ocono.com/ ocono.com] has marked up it's "Upcoming Events" list with hCalendar.
* [http://www.austinbloggers.org/ Austin Bloggers] has marked up their "Upcoming Events" box with hCalendar ([http://www.austinbloggers.org/blog/a/001123.html announcement]).
* Ning's cloneable Group app has [[hcalendar|hCalendar]] markup on its [http://group.ning.com/index.php?controller=event&action=list event calendar] and [http://group.ning.com/index.php?controller=event&action=view&id=727220 event detail] pages.
* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* The National Arbor Day Foundation has started using hCalendars for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] features a vevent for the next meeting information.
* [http://www.stateofflux.com/ State of Flux street art site] has started adding events in hCalendar format
* The [http://barcamp.org/#BarCamps BarCamp home page lists upcoming BarCamps marked up with hCalendar] and even has a "Subscribe..." link.
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the schedule and events for the week with hCalendar.
* [http://www.code4lib.org/2006/schedule code4lib Conference 2006 Schedule] is marked up with hCalendar as [http://www.code4lib.org/node/65 announced on their blog].
* [http://grouper.ieee.org/groups/754 IEEE 754 Working Group] - trying hCalendar for upcoming meetings.
* [http://www.pehuen.org/node/494 Elecciones 2005 Chile] - the first spanish language hCalendar event found in the wild.
* [http://www.codewitch.org/it/2005/11/17/no-creative-commons-no-party/ Giocolando » No Creative Commons? No Party!] is marked up with hCalendar
* [http://www.cmprofessionals.org/events/calendar.html CM Pros Events Calendar] by Bob Doyle
* [http://www.midgard-project.org/community/events/ Midgard CMS Event calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]
* [http://www.iowamilitaryveteransband.com/schedule/ Iowa Military Veterans Band Schedule] - hCalendar markup [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ added by Scott Reynen]
* [http://www.funfairgames.net/weblog/posts/00000011.html Upcoming events on Jason A.R. Moody Amusements Weblog] posted by Jason Moody on 15 Oct 2005. [http://www.funfairgames.net/weblog/index.html His weblog] in general has hCalendar events posted inside the blog posts.
* [http://tantek.com/microformats/2005/syndicate/tracks-sessions-schedule.html Syndicate - Tracks & Sessions]
* [http://tantek.com/microformats/2005/web2/program.html Web 2.0 Conference schedule page marked up with hCalendar]
* [http://www.thisiscmon.com/ C'MON] is a rock band from Canada, and their [http://www.thisiscmon.com/shows/ tour dates] have been marked up by [http://www.d2digitalmedia.com/ Ray Dickman] with hCalendar.
* [http://ifreebusy.com/ ifreebusy.com] will display freebusy information using hCalendar. See this [http://ifreebusy.com/neiljensen/freebusy/ example].
* [http://we05.com/ Web Essentials 05] has marked up their [http://we05.com/program.cfm program schedule table with hCalendar], using the 'axis' and 'headers' attributes.
* [http://www.asdvbonaparte.nl/ ASDV Bonaparte] is a Dutch debating society. Their events calendar has been marked up with the hCalendar conventions.
* [http://chocnvodka.blogware.com/blog Suw Charman] has marked up [http://suw.org.uk/archives/category/events/ her events] with hCalendar.
* [http://www.blogbusinesssummit.com/ Blog Business Summit] has published their [http://www.blogbusinesssummit.com/details.htm event details] marked up with hCalendar.
* [http://evdb.com EVDB], the Events and Venues database, publishes all events with hCalendar and venues with [[hcard|hCard]]. Took them only 15 minutes to implement both!
* [http://upcoming.org Upcoming.org] publishes all events and lists of events with hCalendar. Took them only an hour to add hCalendar support to the site.
* The [http://laughingsquid.com/squidlist/calendar/ Laughing Squid Calendar] events, [http://laughingsquid.com/squidlist/calendar/9949/2005/5/9 e.g. this party], now supports hCalendar.
* [http://paulschreiber.com/ Paul] Schreiber's [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCalendar event information for upcoming concerts. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCalendar events for all past concerts.
* [http://paulschreiber.com/ Paul] Schreiber's [http://iceoasis.shrub.ca/ unofficial schedule site] publishes hCalendar information for upcoming hockey games at [http://www.iceoasis.com/ Ice Oasis]
* [http://www.complexspiral.com/ Complex Spiral Consulting], both in the "Events" box on left side, and the separate [http://www.complexspiral.com/events/ Events page].
* [http://tantek.com/log Tantek's Thoughts], specifically the "Events" roll in the right-most column.
* [http://suda.co.uk/projects/holidays/ Lesser Known Holidays], a list of holidays on [http://suda.co.uk suda.co.uk] that can be imported via iCal and hCal so you can compare actual transformation versus intended.
* [http://norman.walsh.name/2005/itinerary/ Norm Walsh's travel schedule] use hCalendar as well as GRDDL.
* [http://www.policyawareweb.org/2005/ftf2/paw-mtg Policy Aware Web (PAW) Project Meeting] uses hCalendar to record date-related decisions, and uses a vtodo microformat to record action items.
* The [http://www.kiez-ev.de/ Kiez] is a small cinema and has published its [http://www.kiez-ev.de/programm.htm program] marked up with hCalendar.
* The [http://lufgi4.informatik.rwth-aachen.de Laboratory for Dependable Distributed Systems] publishes it's [http://lufgi4.informatik.rwth-aachen.de/cfps list of notable CfPs on dependability and security] with hCalendar-todo elements.
* The [http://laughingsquid.com/laughing-squid-10th-anniversary-party/ Laughing Squid 10th Anniversary Party] has an hcalendar page.
* SPRACI has hcalendar versions of its nightlife/clubbing/gigs/festivals listings for many cities worldwide - eg: [http://www.spraci.com/listhcalendar.php?parea=sydney&category=all Events in Sydney] (check the [http://www.spraci.com/api/ API] pages in the faq section of [http://www.spraci.com/ SPRACI] for more info about the area/city keywords and category tags to use to get data for your city/categories
* WWF-Australia events calendars: [http://wwf.org.au/act/events/ What's on], [http://wwf.org.au/act/volunteer/ Volunteer]

=== Examples with some problems ===
* [http://www.webanalyticsassociation.org/en/calendarevents/search.asp Web Analytics Association] - hCalendar microformat is in place on all Tendenci sites on the calendar events search page and consolidated list page.
** WARNINGS
*** has only dates where there should be datetime's
*** has abbr's with no title
*** should probably markup the description --[[User:RyanKing|RyanKing]] 16:04, 6 Jan 2006 (PST)
* [http://www.bokle.de/ s'Bokle] is a German music pub. Their events calendar has been marked up with hCalendar.
** improper use of rrule --[[User:RyanKing|RyanKing]] 16:04, 6 Jan 2006 (PST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCalendars. If you have an hCalendar implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== Authoring ===
Implementations you can use to author, create, and publish hCalendar events.
==== Blogging and CMS tools ====
;Midgard CMS : [http://www.midgard-project.org/documentation/net-nemein-calendar/ Midgard CMS - net.nemein.calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]

;Drupal module : [http://hybernaut.com/upcoming-hcal Drupal Upcoming.org syndication module emits hCalendar]
;MovableType and WordPress plug-ins : [http://structuredblogging.org/formats.php StructuredBlogging] is a set of plugins [http://structuredblogging.org/structuredblogging-wp-latest.zip for WordPress] and [http://structuredblogging.org/structuredblogging-wp-latest.zip for MovableType] that supports embedding hCalendar and other microformats in templates and blog posts.
;Textpattern plug-in : [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCalendar and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].

==== Browser scripts and plug-ins ====
Browser plugins that work with existing authoring tools:
; Any browser with javascript and a little bit of CSS : [http://microformats.org/code/hcalendar/creator microformats.org hCalendar creator] (see also original: [http://theryanking.com/ Ryan King] has an [http://theryanking.com/microformats/hcalendar-creator.html hCalendar creator]).
; Firefox Greasemonkey user script hCalendar creator : [http://www.decafbad.com/blog/2005/06/08/greasemonkey_magic magic_hcalendar Greasemonkey user script by Les Orchard] - allows easy form entry of an event into any textarea, e.g. into a blog post text area.

=== Browsing ===
;Firefox extension: [http://blog.codeeg.com/tails-firefox-extension/ Tails is a Firefox Extension] that will display the presence of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage.

;Flock extension: [http://blog.codeeg.com/2006/03/20/flock-tails-flocktails/ Flocktails] - port of Tails extension for Flock 0.5.12 that looks for hCards, hCalendar, xFolk and hReview and tosses them into a handy topbar

=== Conversion ===
Importing into a Calendar Application by converting hCalendar to iCalendar/vCalendar.
==== Server Based ====
These return iCalendar (.ics) and other calendar formats for easy importing into typical calendar programs or other processing.
* [http://feeds.technorati.com/events Technorati Events Feed service] uses X2V library to parse hCalendar and return iCalendar (.ics). Note friendly URL, e.g. http://feeds.technorati.com/events/http%3A//microformats.org
* [http://suda.co.uk/projects/X2V/ X2V] parses hCalendar and produces a .ics (iCalendar) stream. Note: needs to be updated to track changes in the specification as they occur.
* [http://lifelint.net/ Life Lint Parser] parses hCalendar and produces .ics, .rdf and debugging information and attempts to be more fully compliant to the iCal standard than previous implementations. It can be used in the same manner as X2V. Can output iCal (w optional Outlook 2002 compat), and RDF.
* In [http://www.xfytec.com/community/ xfy Community], there are some hCalendar implementations. "hCalendar via RSS" parses an RSS feed, retrieves XHTML documents linked from that feed, and syndicates hCalendars into a calendar view.
* [http://web.mit.edu/glasser/www/JSCalendar/ JSCalendar] parses hCalendar and produces a displayable HTML table/CSS-based calendar.
==== Firefox Browser Based ====
* [http://george.hotelling.net/90percent/ George] has built a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script that detects hCalendar events and allows users to easily add them to their calendar application(s)].
* [http://blogmatrix.blogmatrix.com/ David Janes] has produced a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCalendar events, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003379 provides a popup menu of actions]. The hCalendar to vCalendar conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''

=== Libraries ===
; Javascript : [http://virtuelvis.com/archives/2005/11/learn-to-love-microformats simple hCalendar parser] by [http://virtuelvis.com/ Arve Bersvendsen]
; PHP : [http://randomchaos.com/microformats/base/ Microformat Base] is an open-source PHP microformat aggregation crawler, currently recognizing hreview, hcalendar, and hcard.
; Ruby : [http://opensource.reevoo.com/2006/03/08/release-uformats-12/ uformats] is a ruby library that can parse [[hCalendar]], [[hCard]], [[hReview]] and [[rel-tag]]
; XSLT :
* X2V is available as an XSLT library
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] by [[User:DanC]] includes toICal.xsl and test materials; it works much like xhtml2vcal.xsl in X2V. See also: [http://www.w3.org/2002/12/cal/ RDF Calendar workspace] with icalendar test materials.

=== Potential implementations ===

These are open source projects that could be potentially enhanced to support hCalendar.

* [http://www.k5n.us/webcalendar.php?topic=About WebCalendar]
* [http://phpicalendar.net/documentation/index.php?title=Main_Page PHP iCalendar]
* [http://www.vcalendar.org VCalendar]
* Investigation: [http://wiki.mozilla.org/Calendar_Talk:Lightning#hCalendar_publish_and_subscribe_support Mozilla Calendar / Lightning / Sunbird hCalendar support discussion]

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [[hcard|hCard]]
* [http://www.ietf.org/rfc/rfc2445.txt iCalendar RFC2445]

=== Informative References ===
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcalendar hCalendar term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation, 20040911]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* [http://www.ietf.org/internet-drafts/draft-royer-ical-basic-04.txt iCal-Basic draft 04]
* Contributed from http://developers.technorati.com/wiki/hCalendar
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Related ====
* [[icalendar-implementations|iCalendar implementations]]
* [http://lists.osafoundation.org/pipermail/ietf-calsify/ IETF-calsify archives]
* [http://www.livejournal.com/users/jwz/444651.html jwz - Hula] (required reading)
* [http://www.jwz.org/doc/groupware.html Groupware Bad by Jamie Zawinski] crystalizes the reason for hCalendar ('''emphasis''' added):
<blockquote>"Right now people can do that by publishing .ics files, but it's not trivial to do so, and it's work on the part of other people to look at them. '''If it's not HTML hanging off our friend's home page that can be viewed in any browser on a public terminal in a library, the bar to entry is too high and it's useless.'''"</blockquote>

* [http://muddybranch.thejkgroup.com/ Jason Klemow's blog]
* [http://www.softwarestudio.org/iCal/2445Issues.html RFC2445 Issues List]
* [http://ietf.webdav.org/calsify/ CALSIFY WG Links And Resources]

=== Similar Work ===
* [[XOXO]]

== Discussions ==

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. There is a separate document where we are keeping our brainstorms and other explorations relating to hCalendar:

* [[hcalendar-brainstorming]]

* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page].
** [http://weblog.infoworld.com/udell/2006/01/11.html#a1368 Moving forward with microformats] by [http://weblog.infoworld.com/udell Jon Udell] provides an hCalendar example and some discussion.

=== Q&A ===
* If you have any questions about hCalendar, check the [[hcalendar-faq]], and if you don't find answers, add your questions!

=== Issues ===
* Please add any issues with the specification to the separate [[hcalendar-issues]] document.

rel-enclosure

2006-03-16T16:23:44Z

Raster: /* Implementations */ added embedthevideo.com note

= rel="enclosure" =

relEnclosure is a simple, open, format for indicating files to cache which is embeddable in (X)HTML, Atom, RSS, and arbitrary XML. relEnclosure is an [[elemental-microformat|elemental microformat]], one of several [[microformats|microformat]] open standards.

__TOC__

== Draft Specification 2005-06-21 ==
=== Author ===
[http://epeus.blogspot.com Kevin Marks], [http://technorati.com Technorati, Inc.]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

== Abstract ==

relEnclosure is one of several microformats. By adding <code>rel="enclosure"</code> to a hyperlink, a page indicates that the destination of that hyperlink is intended to be downloaded and cached. E.g. with the following hyperlink:

<pre><nowiki>
<a href="http://homepage.mac.com/kevinmarks/wwdc2005.mov" rel="enclosure">WWDC 2005 Keynote with chapters</a>
</nowiki></pre>

the author indicates that the movie should be downloaded.

== Multiple Enclosures ==
Multiple such rel="enclosure" hyperlinks indicate that several media items should be downloaded.

'''Question:''' What if there are several alternative formats, such as high- and low-bandwidth recordings? Since <link rel="alternate" href="..."> is already defined in XHTML for that purpose, so how should it interact with this new rel tag?

'''Response:''' rel="alternate" is defined in the HTML spec:

<blockquote>Designates substitute versions for the document in which the link occurs.</blockquote>

In the case of enclosure links "alternate" is not suited, because the media file is not a substitute version of the document in which the link occurs - it is a substitute version of another link on the document in which the link occurs.

'''Proposal:''' Multiple instances of the same enclosure (i.e. same video with different formats, size/resolution, bitrates, etc) could be grouped in a class="enclosure" block with multiple rel="enclosure" links. This would be analogous to <media:group> in [http://video.yahoo.com/mrss MRSS]

== XMDP profile ==
<pre><nowiki>
<dl class="profile">
<dt id="rel">rel</dt>
<dd><p>
<a rel="help" href="http://www.w3.org/TR/html401/struct/links.html#adef-rel">
HTML4 definition of the 'rel' attribute.</a>
Here is an additional value.</p>
<dl>
<dt id="enclosure"> enclosure </dt>
<dd>Indicates that the referred resource is intended to be downloaded and cached</dd>
</dl>
</dd>
</dl>
</nowiki></pre>

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse rel-enclosure links. If you have a rel-enclosure implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://www.feedburner.com FeedBurner]: the [http://forums.feedburner.com/viewtopic.php?t=20 SmartCast] service looks for the rel="enclosure" microformat and converts it to an enclosure in the feed.
* [http://odeo.com ODEO] [http://odeo.com/blog/2005/07/adding-microformats-to-odeo.html publishes] rel-enclosure links for user podcast MP3s.
* [http://joshkinberg.com/popupmaker/ Video Pop-Up Link Maker]: generates code for rel-enclosure links for videobloggers. Also generates Javascript to launch a pop-up window with the video embedded. (Also available at [http://embedthevideo.com/ embedthevideo.com])

== References ==
=== Normative References ===
* [http://gmpg.org/xmdp/ XMDP]

=== Informative References ===
* [http://www.ietf.org/rfc/rfc4287.txt The Atom Syndication Format]:
** 4.2.7.2 The "rel" Attribute
4. The value "enclosure" signifies that the IRI in the value of the
href attribute identifies a related resource which is potentially
large in size and might require special handling. For atom:link
elements with rel="enclosure", the length attribute SHOULD be
provided.

User:Raster

2006-03-09T23:27:15Z

Raster: added note

== Pete Prodoehl ==

Pete is a hacker of many things... He started using computers in 1980, started a weblog in August 1997, started podcasting in August 2004, and started videoblogging in May of 2005.

Microformats are, in the opinion of this geek, totally cool. I'm working on adding them to existing sites I manage as I can... Stay tuned!

== Links ==

* [http://rasterweb.net/raster/ RasterWeb!] (weblog)
* [http://rasterweb.net/raster/audio/ RasterWeb! Audio] (podcast)
* [http://tinkernet.org/ tinkernet] (videoblog)

hcalendar

2006-03-09T23:25:47Z

Raster: /* Examples in the wild */ fixed small typo

<h1> hCalendar </h1>

hCalendar is a simple, open, distributed calendaring and events format, based on the iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCalendar is one of several open [[microformats|microformat]] standards.

Want to get started with writing an [[hcalendar|hCalendar]] event? Use the [http://microformats.org/code/hcalendar/creator hCalendar creator] to write up an event and publish it.

__TOC__

== Draft Specification ==

; Editor : [http://tantek.com/ Tantek Çelik] ([http://technorati.com Technorati, Inc])
; Authors : [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
: [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to:
* Adam Bosworth for leading the [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation] which brought together a critical mass of interested parties.

== Introduction ==
The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), has been broadly interoperably implemented (e.g. Apple's "iCal" application built into MacOSX).

In addition, bloggers often discuss events on their blogs -- upcoming events, writeups of past events, etc. With just a tad bit of structure, bloggers can discuss events in their blog(s) in such a way that spiders and other aggregators can retrieve such events, automatically convert them to iCalendar, and use them in any iCalendar application or service.

This specification introduces the '''hCalendar''' format, which is a 1:1 representation of the aforementioned iCalendar standard, in semantic XHTML. Bloggers can both embed hCalendar events directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCalendar enables applications to retrieve information about such events directly from web pages without having to reference a separate file.

== Semantic XHTML Design Principles ==

{{semantic-xhtml-design-principles}}

== Format ==

=== In General ===

The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]) forms the basis of hCalendar.

Note: the editor and authors of this specification are tracking the [http://lists.osafoundation.org/pipermail/ietf-calsify/ "iCal-Basic" effort] and intend to base the core hCalendar profile on iCal-Basic. See references for a link to the current draft.

The basic format of hCalendar is to use iCalendar object/property names in lower-case for class names, and to map the nesting of iCalendar objects directly into nested XHTML.

=== More Semantic Equivalents ===

However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in iCalendar becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vevent"</code> in hCalendar.
* <code>ATTENDEE</code> in iCalendar may in hCalendar be represented by an [[hcard]].

=== Singular vs. Plural Properties ===

For properties which are singular (e.g. "N" and "FN" from vCard), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL" from vCard), each class instance should create a instance of that property. Plural properties with subtypes (e.g. TEL with WORK, HOME, CELL from vCard) can be optimized to share a common element for the property itself, with each instance of subtype being an appropriately classed descendant of the property element.

=== Human vs. Machine readable ===
If an <code><nowiki><abbr></nowiki></code> element is used for a property, then the '<code>title</code>' attribute of the <code><nowiki><abbr></nowiki></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value. This specification recommends that such <code><nowiki><abbr></nowiki></code> elements be used for the following iCalendar properties:
* DTSTART, DTEND, DURATION, RDATE, RRULE

== Example ==

Here is a sample event in an iCalendar:
<pre><nowiki>
BEGIN:VCALENDAR
PRODID:-//XYZproduct//EN
VERSION:2.0
BEGIN:VEVENT
URL:http://www.web2con.com/
DTSTART:20051005
DTEND:20051008
SUMMARY:Web 2.0 Conference
LOCATION:Argent Hotel\, San Francisco\, CA
END:VEVENT
END:VCALENDAR
</nowiki></pre>
and an equivalent event in hCalendar format with various elements optimized appropriately. See [[hcalendar-example1-steps]] for the derivation.

<pre><nowiki>
<span class="vevent">
<a class="url" href="http://www.web2con.com/">
<span class="summary">Web 2.0 Conference</span>:
<abbr class="dtstart" title="2005-10-05">October 5</abbr>-
<abbr class="dtend" title="2005-10-08">7</abbr>,
at the <span class="location">Argent Hotel, San Francisco, CA</span>
</a>
</span>
</nowiki></pre>
which could be displayed as:

[http://www.web2con.com/ Web 2.0 Conference: October 5-7, at the Argent Hotel, San Francisco, CA]

Note 1: The product information is not necessary since hCalendar is an interchange format. When transforming hCalendar back into iCalendar, the transforming engine should add its own product ID.

Note 2: A surrounding <code><nowiki><span class="vcalendar"></nowiki></code> element is optional, and is left out as such. It is optional since the context of a vcalendar is implied when a vevent is encountered. The implied context/scope is that of the document. Authors may explicitly use elements with class="vcalendar" to wrap sets of vevents that all belong to the same calendar, e.g. when publishing multiple calendars on the same page.

Note 3: The version information is unnecessary in hCalendar markup directly since the version will be defined by the profile of hCalendar that is used/referred to in the 'profile' attribute of the <head> element.

Note 4: ISO8601 dates (required by iCalendar) are not very human friendly. In addition, the year is often understood implicitly by humans from the context. Thus <code><nowiki><abbr></nowiki></code> elements are used to simultaneously provide a human friendly date and/or time in the visible contents of the element, while placing the respective machine parsable comprehensive ISO8601 datetime in the 'title' attribute.
The notation YYYY-MM-DD should be used for better readability.

Note 5: The difference between the DTEND ISO8601 date (2005-10-08) and the human readable date (7) is NOT a mistake. [http://lists.osafoundation.org/pipermail/ietf-calsify/2005-September/000769.html DTEND is exclusive], meaning, that the event ends just before the DTEND. Thus for events which start on one day and end on another day, the DTEND date must be specified as the day after the day that a human would say is the last day of the event.

See [[hcalendar-examples]] for more hCalendar examples

== Examples in the wild ==
This section is '''informative'''.

The following sites have implemented hCalendar, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If events on your pages are marked up with hCalendar, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.
* Ning's cloneable Group app has [[hcalendar|hCalendar]] markup on its [http://group.ning.com/index.php?controller=event&action=list event calendar] and [http://group.ning.com/index.php?controller=event&action=view&id=727220 event detail] pages.
* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* The National Arbor Day Foundation has started using hCalendars for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] features a vevent for the next meeting information.
* [http://www.stateofflux.com/ State of Flux street art site] has started adding events in hCalendar format
* The [http://barcamp.org/#BarCamps BarCamp home page lists upcoming BarCamps marked up with hCalendar] and even has a "Subscribe..." link.
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the schedule and events for the week with hCalendar.
* [http://www.code4lib.org/2006/schedule code4lib Conference 2006 Schedule] is marked up with hCalendar as [http://www.code4lib.org/node/65 announced on their blog].
* [http://grouper.ieee.org/groups/754 IEEE 754 Working Group] - trying hCalendar for upcoming meetings.
* [http://www.pehuen.org/node/494 Elecciones 2005 Chile] - the first spanish language hCalendar event found in the wild.
* [http://www.codewitch.org/it/2005/11/17/no-creative-commons-no-party/ Giocolando » No Creative Commons? No Party!] is marked up with hCalendar
* [http://www.cmprofessionals.org/events/calendar.html CM Pros Events Calendar] by Bob Doyle
* [http://www.midgard-project.org/community/events/ Midgard CMS Event calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]
* [http://www.iowamilitaryveteransband.com/schedule/ Iowa Military Veterans Band Schedule] - hCalendar markup [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ added by Scott Reynen]
* [http://www.funfairgames.net/weblog/posts/00000011.html Upcoming events on Jason A.R. Moody Amusements Weblog] posted by Jason Moody on 15 Oct 2005. [http://www.funfairgames.net/weblog/index.html His weblog] in general has hCalendar events posted inside the blog posts.
* [http://tantek.com/microformats/2005/syndicate/tracks-sessions-schedule.html Syndicate - Tracks & Sessions]
* [http://tantek.com/microformats/2005/web2/program.html Web 2.0 Conference schedule page marked up with hCalendar]
* [http://www.thisiscmon.com/ C'MON] is a rock band from Canada, and their [http://www.thisiscmon.com/shows/ tour dates] have been marked up by [http://www.d2digitalmedia.com/ Ray Dickman] with hCalendar.
* [http://ifreebusy.com/ ifreebusy.com] will display freebusy information using hCalendar. See this [http://ifreebusy.com/neiljensen/freebusy/ example].
* [http://we05.com/ Web Essentials 05] has marked up their [http://we05.com/program.cfm program schedule table with hCalendar], using the 'axis' and 'headers' attributes.
* [http://www.asdvbonaparte.nl/ ASDV Bonaparte] is a Dutch debating society. Their events calendar has been marked up with the hCalendar conventions.
* [http://chocnvodka.blogware.com/blog Suw Charman] has marked up [http://suw.org.uk/archives/category/events/ her events] with hCalendar.
* [http://www.blogbusinesssummit.com/ Blog Business Summit] has published their [http://www.blogbusinesssummit.com/details.htm event details] marked up with hCalendar.
* [http://evdb.com EVDB], the Events and Venues database, publishes all events with hCalendar and venues with [[hcard|hCard]]. Took them only 15 minutes to implement both!
* [http://upcoming.org Upcoming.org] publishes all events and lists of events with hCalendar. Took them only an hour to add hCalendar support to the site.
* The [http://laughingsquid.com/squidlist/calendar/ Laughing Squid Calendar] events, [http://laughingsquid.com/squidlist/calendar/9949/2005/5/9 e.g. this party], now supports hCalendar.
* [http://paulschreiber.com/ Paul] Schreiber's [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCalendar event information for upcoming concerts. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCalendar events for all past concerts.
* [http://paulschreiber.com/ Paul] Schreiber's [http://iceoasis.shrub.ca/ unofficial schedule site] publishes hCalendar information for upcoming hockey games at [http://www.iceoasis.com/ Ice Oasis]
* [http://www.complexspiral.com/ Complex Spiral Consulting], both in the "Events" box on left side, and the separate [http://www.complexspiral.com/events/ Events page].
* [http://tantek.com/log Tantek's Thoughts], specifically the "Events" roll in the right-most column.
* [http://suda.co.uk/projects/holidays/ Lesser Known Holidays], a list of holidays on [http://suda.co.uk suda.co.uk] that can be imported via iCal and hCal so you can compare actual transformation versus intended.
* [http://norman.walsh.name/2005/itinerary/ Norm Walsh's travel schedule] use hCalendar as well as GRDDL.
* [http://www.policyawareweb.org/2005/ftf2/paw-mtg Policy Aware Web (PAW) Project Meeting] uses hCalendar to record date-related decisions, and uses a vtodo microformat to record action items.
* The [http://www.kiez-ev.de/ Kiez] is a small cinema and has published its [http://www.kiez-ev.de/programm.htm program] marked up with hCalendar.
* The [http://lufgi4.informatik.rwth-aachen.de Laboratory for Dependable Distributed Systems] publishes it's [http://lufgi4.informatik.rwth-aachen.de/cfps list of notable CfPs on dependability and security] with hCalendar-todo elements.
* The [http://laughingsquid.com/laughing-squid-10th-anniversary-party/ Laughing Squid 10th Anniversary Party] has an hcalendar page.
* SPRACI has hcalendar versions of its nightlife/clubbing/gigs/festivals listings for many cities worldwide - eg: [http://www.spraci.com/listhcalendar.php?parea=sydney&category=all Events in Sydney] (check the [http://www.spraci.com/api/ API] pages in the faq section of [http://www.spraci.com/ SPRACI] for more info about the area/city keywords and category tags to use to get data for your city/categories
* WWF-Australia events calendars: [http://wwf.org.au/act/events/ What's on], [http://wwf.org.au/act/volunteer/ Volunteer]

=== Examples with some problems ===
* [http://www.webanalyticsassociation.org/en/calendarevents/search.asp Web Analytics Association] - hCalendar microformat is in place on all Tendenci sites on the calendar events search page and consolidated list page.
** WARNINGS
*** has only dates where there should be datetime's
*** has abbr's with no title
*** should probably markup the description --[[User:RyanKing|RyanKing]] 16:04, 6 Jan 2006 (PST)
* [http://www.bokle.de/ s'Bokle] is a German music pub. Their events calendar has been marked up with hCalendar.
** improper use of rrule --[[User:RyanKing|RyanKing]] 16:04, 6 Jan 2006 (PST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCalendars. If you have an hCalendar implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== Authoring ===
Implementations you can use to author, create, and publish hCalendar events.
==== Blogging and CMS tools ====
;Midgard CMS : [http://www.midgard-project.org/documentation/net-nemein-calendar/ Midgard CMS - net.nemein.calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]

;Drupal module : [http://hybernaut.com/upcoming-hcal Drupal Upcoming.org syndication module emits hCalendar]
;MovableType and WordPress plug-ins : [http://structuredblogging.org/formats.php StructuredBlogging] is a set of plugins [http://structuredblogging.org/structuredblogging-wp-latest.zip for WordPress] and [http://structuredblogging.org/structuredblogging-wp-latest.zip for MovableType] that supports embedding hCalendar and other microformats in templates and blog posts.
;Textpattern plug-in : [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCalendar and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].

==== Browser scripts and plug-ins ====
Browser plugins that work with existing authoring tools:
; Any browser with javascript and a little bit of CSS : [http://microformats.org/code/hcalendar/creator microformats.org hCalendar creator] (see also original: [http://theryanking.com/ Ryan King] has an [http://theryanking.com/microformats/hcalendar-creator.html hCalendar creator]).
; Firefox Greasemonkey user script hCalendar creator : [http://www.decafbad.com/blog/2005/06/08/greasemonkey_magic magic_hcalendar Greasemonkey user script by Les Orchard] - allows easy form entry of an event into any textarea, e.g. into a blog post text area.

=== Browsing ===
;Firefox extension : [http://blog.codeeg.com/tails-firefox-extension/ Tails is a Firefox Extension] that will display the presence of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage.

=== Conversion ===
Importing into a Calendar Application by converting hCalendar to iCalendar/vCalendar.
==== Server Based ====
These return iCalendar (.ics) and other calendar formats for easy importing into typical calendar programs or other processing.
* [http://feeds.technorati.com/events Technorati Events Feed service] uses X2V library to parse hCalendar and return iCalendar (.ics). Note friendly URL, e.g. http://feeds.technorati.com/events/http%3A//microformats.org
* [http://suda.co.uk/projects/X2V/ X2V] parses hCalendar and produces a .ics (iCalendar) stream. Note: needs to be updated to track changes in the specification as they occur.
* [http://lifelint.net/ Life Lint Parser] parses hCalendar and produces .ics, .rdf and debugging information and attempts to be more fully compliant to the iCal standard than previous implementations. It can be used in the same manner as X2V. Can output iCal (w optional Outlook 2002 compat), and RDF.
* In [http://www.xfytec.com/community/ xfy Community], there are some hCalendar implementations. "hCalendar via RSS" parses an RSS feed, retrieves XHTML documents linked from that feed, and syndicates hCalendars into a calendar view.
* [http://web.mit.edu/glasser/www/JSCalendar/ JSCalendar] parses hCalendar and produces a displayable HTML table/CSS-based calendar.
==== Firefox Browser Based ====
* [http://george.hotelling.net/90percent/ George] has built a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script that detects hCalendar events and allows users to easily add them to their calendar application(s)].
* [http://blogmatrix.blogmatrix.com/ David Janes] has produced a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCalendar events, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003379 provides a popup menu of actions]. The hCalendar to vCalendar conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''

=== Libraries ===
; Javascript : [http://virtuelvis.com/archives/2005/11/learn-to-love-microformats simple hCalendar parser] by [http://virtuelvis.com/ Arve Bersvendsen]
; PHP : [http://randomchaos.com/microformats/base/ Microformat Base] is an open-source PHP microformat aggregation crawler, currently recognizing hreview, hcalendar, and hcard.
; Ruby : [http://opensource.reevoo.com/2006/03/08/release-uformats-12/ uformats] is a ruby library that can parse [[hCalendar]], [[hCard]], [[hReview]] and [[rel-tag]]
; XSLT :
* X2V is available as an XSLT library
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] by [[User:DanC]] includes toICal.xsl and test materials; it works much like xhtml2vcal.xsl in X2V. See also: [http://www.w3.org/2002/12/cal/ RDF Calendar workspace] with icalendar test materials.

=== Potential implementations ===

These are open source projects that could be potentially enhanced to support hCalendar.

* [http://www.k5n.us/webcalendar.php?topic=About WebCalendar]
* [http://phpicalendar.net/documentation/index.php?title=Main_Page PHP iCalendar]
* Investigation: [http://wiki.mozilla.org/Calendar_Talk:Lightning#hCalendar_publish_and_subscribe_support Mozilla Calendar / Lightning / Sunbird hCalendar support discussion]

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [[hcard|hCard]]
* [http://www.ietf.org/rfc/rfc2445.txt iCalendar RFC2445]

=== Informative References ===
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcalendar hCalendar term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation, 20040911]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* [http://www.ietf.org/internet-drafts/draft-royer-ical-basic-02.txt iCal-Basic draft 02]
* Contributed from http://developers.technorati.com/wiki/hCalendar
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Related ====
* [[icalendar-implementations|iCalendar implementations]]
* [http://lists.osafoundation.org/pipermail/ietf-calsify/ IETF-calsify archives]
* [http://www.livejournal.com/users/jwz/444651.html jwz - Hula] (required reading)
* [http://www.jwz.org/doc/groupware.html Groupware Bad by Jamie Zawinski] crystalizes the reason for hCalendar ('''emphasis''' added):
<blockquote>"Right now people can do that by publishing .ics files, but it's not trivial to do so, and it's work on the part of other people to look at them. '''If it's not HTML hanging off our friend's home page that can be viewed in any browser on a public terminal in a library, the bar to entry is too high and it's useless.'''"</blockquote>

* [http://muddybranch.thejkgroup.com/ Jason Klemow's blog]
* [http://www.softwarestudio.org/iCal/2445Issues.html RFC2445 Issues List]
* [http://ietf.webdav.org/calsify/ CALSIFY WG Links And Resources]

=== Similar Work ===
* [[XOXO]]

== Discussions ==

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. There is a separate document where we are keeping our brainstorms and other explorations relating to hCalendar:

* [[hcalendar-brainstorming]]

* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page].
** [http://weblog.infoworld.com/udell/2006/01/11.html#a1368 Moving forward with microformats] by [http://weblog.infoworld.com/udell Jon Udell] provides an hCalendar example and some discussion.

=== Q&A ===
* If you have any questions about hCalendar, check the [[hcalendar-faq]], and if you don't find answers, add your questions!

=== Issues ===
* Please add any issues with the specification to the separate [[hcalendar-issues]] document.

xoxo

2006-03-06T21:48:15Z

Raster: /* Abstract */ changed case, orig. page redirected...

<h1> XOXO 1.0: Extensible Open XHTML Outlines </h1>

XOXO is a simple, open outline format written in standard XHTML and suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. XOXO is one of several [[microformats|microformat]] open standards.

__TOC__

== Draft Specification 2004-10-01 ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]

=== Authors ===
* [http://epeus.blogspot.com/ Kevin Marks], [http://technorati.com Technorati, Inc]
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc] (formerly of [http://microsoft.com/ Microsoft Corporation])
* [http://diveintomark.org/ Mark Pilgrim], [http://ibm.com IBM]
* [http://www.blogologue.com/ Morten W. Petersen]

=== Copyright ===
{{MicroFormatCopyrightStatement2003}}

=== Patents ===
{{MicroFormatPatentStatement}}

== Preamble ==
When we were discussing [http://developers.technorati.com/wiki/attentionxml Attention.xml], Tantek pointed out that XHTML has everything necessary for semantically expressing outlines and blogroll-like subscriptions in an XML format that is both interactively renderable by browsers and parsable by strict XML engines. This page is here to discuss this idea.

=== Name ===
XOXO stands for eXtensible Open XHTML Outlines, and is pronounced variously as 'ecks oh ecks oh', 'zho-zho', or 'sho-sho'.

== Abstract ==
XOXO is one of several [[microformats]]. This specification defines a new XHTML document type that is based upon the module framework and modules defined in Modularization of XHTML ([http://www.w3.org/TR/xhtml-modularization XHTMLMOD]). The purpose of the XOXO document type is to serve as the basis for XHTML friendly outlines for processing by XML engines and for easy interactive rendering by browsers.

== The XOXO Document Type ==
The XOXO document type is made up of the following XHTML modules. The elements, attributes, and minimal content models associated with these modules are defined in "Modularization of XHTML" ([http://www.w3.org/TR/xhtml-modularization XHTMLMOD]). The elements are listed here for information purposes, but the definitions in "Modularization of XHTML" should be considered definitive. In the on-line version of this document, the module names in the list below link into the definitions of the modules within the current version of "Modularization of XHTML".

[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_structuremodule Structure Module]
body, head, html, title
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_hypertextmodule Hypertext Module]
a
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_listmodule List Module]
dl, dt, dd, ol, ul, li
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_metamodule Metainformation Module]
meta
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_stylemodule Stylesheet Module]
style element
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_styleattributemodule Style Attribute Module]
style attribute
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_linkmodule Link Module]
link
[http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_legacymodule Legacy Module]
Attribute compact on ol and ul

=== The XOXO Profile ===

See [[xoxo-profile]] for the [http://gmpg.org/xmdp XMDP] profile of XOXO which defines the XOXO values for the class attribute.

== Simple XOXO Fragment ==

=== Markup ===

<pre><nowiki><ol class='xoxo'>
<li>Subject 1
<ol>
<li>subpoint a</li>
<li>subpoint b</li>
</ol>
</li>
<li>Subject 2
<ol compact="compact">
<li>subpoint c</li>
<li>subpoint d</li>
</ol>
</li>
<li>Subject 3
<ol>
<li>subpoint e</li>
</ol>
</li>
</ol>
</nowiki></pre>

=== Sample Rendering ===
<pre><nowiki>
1. Subject 1
a. subpoint a
b. subpoint b
2. Subject 2
3. Subject 3
a. subpoint e
</nowiki></pre>
=== Usage of 'compact' attribute ===

Note the use of the 'compact' attribute to indicate that the subpoints of the headline "Subject 2" are not in an expanded state. The absence of the 'compact' attribute elsewhere indicates that the other headlines are in an expanded state.

=== Possible Default Style Rules for Sample Rendering ===

<pre><nowiki>
ol.xoxo { list-style:decimal; }
ol.xoxo ol { list-style:lower-latin; }
ol[compact="compact"] { display:none; }
</nowiki></pre>

== More Simple Examples ==

MarkP has a set of examples that demonstrates both the simplicity of the markup and the presentational richness that is possible:

* [http://diveintomark.org/public/2004/01/xo-flat.xo simple XO file that can be embedded directly into an XHTML page]
* [http://diveintomark.org/public/2004/01/xo-embeddable.xo XO with nested groups, also directly embeddedable in XHTML]
* [http://diveintomark.org/public/2004/01/xo-standalone.xo XO as a standalone XHTML page] ([http://validator.w3.org/check?uri=http%3A%2F%2Fdiveintomark.org%2Fpublic%2F2004%2F01%2Fxo-standalone.xo valid XHTML])
* [http://diveintomark.org/public/2004/01/xo-with-style.xo XO as a standalone XHTML page, styled with CSS] ([http://validator.w3.org/check?uri=http%3A%2F%2Fdiveintomark.org%2Fpublic%2F2004%2F01%2Fxo-with-style.xo also valid XHTML])
* [http://homepage.mac.com/ctholland/thelab/outlines/ Chris Holland Outline Helper]: tweaked one of above samples, yanked CSS for simplicity, added reference to [http://homepage.mac.com/ctholland/thelab/outlines/outlines.css outlines.css] and [http://homepage.mac.com/ctholland/thelab/outlines/outlines.js outlines.js], pasted a few different combinations of ul/ol/li with the compact attribute.
** in trying to comply with semantic principles the "compact" attribute to ol and ul elements is what drives the display state. Via scripting, i'm setting classes on containing li element for added styling flexibility, though CSS Gurus might be able to replace "li.expanded" in outlines.css with some other CSS selector that says "select an li node that contains an ol node with a 'compact' attribute set".

== Properties of Outline Items ==
Outlines typically consist of a hierarchy of points and subpoints. Each of those points (outline items) itself may have some properties (AKA attributes or metadata) that need to be represented. Perhaps the most common additional property on outline items in practice is the URL as demonstrated in Mark Pilgrim's examples above. Even the text label/title of an outline item could be considered a common property. A few such common properties:
* text
* description
* url (often called xmlurl or htmlurl; sometimes called permalink)
* title
* type (hint of the MIME type of the resource indicated by the URL)

In general, properties on an outline item <code><nowiki><li></nowiki></code> are represented by a nested definition list <code><nowiki><dl></nowiki></code>. Strictly speaking, it is the first <code><nowiki><dl></nowiki></code> inside the <code><nowiki><li></nowiki></code> and before any following <code><nowiki><ol></nowiki></code>, <code><nowiki><ul></nowiki></code>, or <code><li></code>, e.g. here is an item "item 1" with a description property (the subpoints are there purely as a point of reference to an earlier example).

<pre><nowiki>
<ol class='xoxo'>
<li>item 1
<dl>
<dt>description</dt>
<dd>This item represents the main point we're trying to make.</dd>
</dl>
<ol>
<li>subpoint a</li>
<li>subpoint b</li>
</ol>
</li>
</nowiki></pre>

=== Special Properties ===
There are a handful of special properties which we are able to represent more directly and conveniently with the semantic XHTML building blocks that we have included, instead of terms in a definition list. Mostly taken from the above list of common properties, these are:
* text, url, title, type, and rel (short for relationship)

If we were to represent them simply as definition terms (including the "description" property from the previous example), they might look something like this:

Example for the sake of discussion only / not a canonical XOXO example:

<pre><nowiki>
<ol class='xoxo'>
<li>
<dl>
<dt>text</dt>
<dd>item 1</dd>
<dt>description</dt>
<dd> This item represents the main point we're trying to make.</dd>
<dt>url</dt>
<dd>http://example.com/more.xoxo</dd>
<dt>title</dt>
<dd>title of item 1</dd>
<dt>type</dt>
<dd>text/xml</dd>
<dt>rel</dt>
<dd>help</dd>
</dl>
</li>
</nowiki></pre>

However, by taking advantage of the semantic <code><a href></code> element, we are able to dramatically simplify the common cases that utilize these properties. From a parser's perspective, this applies to the first <code><a href></code> element directly inside the <code><nowiki><li></nowiki></code>.

Actual XOXO Example:

<pre><nowiki>
<ol class='xoxo'>
<li><a href="http://example.com/more.xoxo"
title="title of item 1"
type="text/xml"
rel="help">item 1</a>

<dl>
<dt>description</dt>
<dd>This item represents the main point we're trying to make.</dd>
</dl>
</li>
</nowiki></pre>

Any other properties are simply added to the definition list in the same way as the "description" property.

== Publishing XOXO ==

XOXO may be published in two forms, valid XHTML, and simple well-formed XML.

=== Valid XHTML XOXO ===

A valid XHTML XOXO page is a complete XHTML document.

<pre><nowiki>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>XOXO page</title>
</head>
<body>
<ol class="xoxo">
<li><a href="URL-one">TEXT-one</a</li>
<li><a href="URL-two">TEXT-two</a></li>
...
</ol>
</body>
</html>
</nowiki></pre>

==== Content-Type ====

Valid XHTML XOXO SHOULD be served with this Content-Type header for maximum browser compatibility.

<pre><nowiki>
Content-Type: text/html; charset=utf-8
</nowiki></pre>

It MUST be served with one of these Content-Type headers:

<pre><nowiki>
Content-Type: text/html; charset=utf-8
Content-Type: application/xhtml+xml; charset=utf-8
</nowiki></pre>

=== Simple well-formed XML XOXO ===

The root element of a simple well-formed XML XOXO page is either an <code>ol</code> or <code>ul</code> with class name of "xoxo". This variant is ideal for syndication and transclusion into (X)HTML pages with [[rest/ahah|AHAH]].

<pre><nowiki>
<ol class="xoxo">
<li><a href="URL-one">TEXT-one</a</li>
<li><a href="URL-two">TEXT-two</a></li>
...
</ol>
</nowiki></pre>

==== Content-Type ====

Simple well-formed XML XOXO SHOULD be served with this Content-Type header:
<pre><nowiki>
Content-Type: text/xml; charset=utf-8
</nowiki></pre>

It MUST be served with one of these Content-Type headers:

<pre><nowiki>
Content-Type: text/xml; charset=utf-8
Content-Type: application/xml
Content-Type: application/xml; charset=utf-8
</nowiki></pre>

== Examples in the Wild ==
This section is '''informative'''.

Too numerous to document thoroughly. Nearly every blogroll on the Web can be parsed as XOXO, since they are typically an unordered list of list items of hyperlinks, which is within the XOXO profile.

== Implementations ==
This section is '''informative'''.

* [http://chneukirchen.org/blog/ Christian Neukirchen] has [http://chneukirchen.org/blog/archive/2006/01/xoxo-rb-0-1-released.html written a xoxo.rb, a XOXO parser and generator for Ruby]
* [http://odeo.com Odeo] publishes users' subscription lists in XOXO. See Ryan King's list [http://odeo.com/profile/RyanKing/xoxo here].
* [http://www.decafbad.com/blog/ Les Orchard] has [http://www.decafbad.com/blog/2005/07/12/xoxo_outliner_experiment written] a [http://www.decafbad.com/2005/07/map-test/tree2.html nice XOXO outline editor in javascript].
* http://homepage.mac.com/ctholland/thelab/outlines/ is a great demonstration of dynamic interactive XOXO with use of "compact" and DHTML to collapse/expand.
* http://tool-man.org/examples/sorting.html is a great demonstration of drag and drop sortable XOXO lists with javascript and CSS.
* http://www.joshpeek.com/projects/opmltoxoxo is an extensible OPML to XOXO converter.
* http://www.opendarwin.org/~drernie/xoxo-datatypes.html Mapping XOXO to [http://developer.apple.com/documentation/Cocoa/Conceptual/PropertyLists/Concepts/XMLPListsConcept.html Mac OS X property lists]
* [http://techno-weenie.net/blog/main/261/if-i-had-a-tumblelog single line of rails to convert XOXO to HTML]

=== Sample Code ===

* See the [[xoxo-sample-code]] page for open source sample code to read and write XOXO files.
* See also the [[xoxo-compact-sample]] page with source for CSS and JS that alters the look and feel of some very plain XOXO to have twiddlable triangles for nested lists that respect the compact attribute as well.

== XOXO Schemas ==
This section is informative.

Note: these may be out of date and require updating to reflect the use of <dl> for annotating XOXO items with arbitrary properties.
* [[DTDs]]
* [http://www.nidelven-it.no/projects/XOXO/xoxo-0.1.tgz Schemas (Relax NG and DTDs)]

== References ==
=== Normative References ===
* [http://www.w3.org/TR/xhtml1 XHTML 1.0]
* [http://www.w3.org/TR/xhtml-modularization XHTMLMOD]
* [http://gmpg.org/xmdp/ XMDP]
* [http://gmpg.org/xfn/ XFN]

=== Informative References ===
This section is '''informative'''.
* [http://developers.technorati.com/wiki/attentionxml Attention.xml]
* [[VoteLinks]]
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]
* [http://opml.scripting.com/spec OPML 1.0]
* Contributed from http://developers.technorati.com/wiki/XOXO

=== Similar Work ===
* [http://dannyayers.com/archives/001961.html XHTML Outlines] - DannyAyers independently came up with idea in 2003 October (just a month or two before Kevin and Tantek independently came up with XOXO) to use a simple profile of XHTML to semantically represent outlines using existing building blocks from XHTML.
* [http://semtext.org/2004-02/ XOW] - making them editable, producing RDF and bookmark lists from them (DannyAyers)

=== Related Reading ===
* [http://patricklogan.blogspot.com/2005/08/lists-really-can-we-expect-better.html Patrick Logan on why OPML and a Microsoft Lists extension are both unnecessary].
* [http://raybenchen.blogspot.com/2005/11/is-crappy-format-worth-saving.html Dr. Tao Chen on why it is better to use XOXO than OPML going forward]

=== Unrelated Reading ===
* [http://www.questionablecontent.net/view.php?comic=493 Questionable Content comic #493] - apparently the Faye character is a fan of XOXO.

=== Promotional Materials / Schwag ===
* There is an entire XOXO clothing and accessories line. [http://www.xoxo.com/home.php Buy XOXO stuff online].

== Discussions ==
This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. There is a separate document where we are keeping our brainstorms and other explorations relating to XOXO:

* See [[xoxo-brainstorming]] for additional thoughts on how to use XOXO for specific uses.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page].
** [http://blogxoxo.blogspot.com/ XOXO Blog]

=== Q&A ===
* If you have any questions about XOXO, check the [[xoxo-faq]], and if you don't find answers, add your questions!

=== Issues ===
* Please add any issues with the specification to the separate [[xoxo-issues]] document.

User:Raster

2006-03-03T20:33:12Z

Raster: Initial revision

== Pete Prodoehl ==

Pete is a hacker of many things... He started using computers in 1980, started a weblog in August 1997, started podcasting in August 2004, and started videoblogging in May of 2005.

== Links ==

* [http://rasterweb.net/raster/ RasterWeb!] (weblog)
* [http://rasterweb.net/raster/audio/ RasterWeb! Audio] (podcast)
* [http://tinkernet.org/ tinkernet] (videoblog)

geo

2006-03-03T19:22:05Z

Raster: /* Examples in the wild */ added link

= geo =

'''geo''' (working name, pronounced "gee-oh") is a simple format for marking up geographic latitude longitude information, suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. '''geo''' is a 1:1 representation of the "geo" property in the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in XHTML, one of several open [[microformats|microformat]] standards.
__TOC__

== Draft Specification ==

=== Editor/Author ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Copyright ===
{{MicroFormatCopyrightStatement2005}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to everyone who participated in the [[geo-bof-2005-06-30|Geo Microformat BOF at O'Reilly's Where 2.0 conference]], and in particular to [http://radar.oreilly.com/nat/ Nat Torkington] and Vee McMillen of [http://oreilly.com O'Reilly] for [http://conferences.oreillynet.com/cs/where2005/view/e_sess/7476 arranging and hosting the BOF]. Thanks to Chris Hibbbert for providing the [http://www.geocaching.com/seek/cache_details.aspx?guid=dc4754bf-64d5-4f28-8715-45ad2505c86f real world geo-caching example].

== Introduction and Background ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly and interoperably implemented (e.g. Apple's Address Book application). The [[hcard|hCard]] microformat has similarly received significant adoption, from numerous sites publishing the format, to hCard to vCard proxies, to clientside javascript parsers.

At the [http://conferences.oreillynet.com/where/ Where 2.0 conference] in June 2005, there was widespread recognition that the community needed a way to simply and easily publish visible, extractable, geographic location information on the Web, given how often bloggers, and numerous other sites publish such information. The [[geo-bof-2005-06-30|geo microformat BOF]] discussed this very topic, and concluded with a consensus decision to just try using ''geo'' from vCard/hCard.

This specification introduces the '''geo''' microformat, which is a 1:1 representation of the aforementioned ''geo'' property from the vCard standard, by simply reusing the ''geo'' property and sub-properties as-is from the [[hcard|hCard]] microformat.

Publishers can both embed '''geo''' addresses directly in their web pages and feeds, as well as markup existing addresses in the context of the rest of the information in their web pages and feeds.

If the publisher knows and is publishing the ''name'' of the location in addition to its geo lat/long, then the publisher MUST use [[hcard|hCard]] instead of just '''geo''' to publish the name and geo lat/long of the location.

If the publisher knows and is publishing the address of the location, OR if the address of the location was what was actually entered by a human, and the publisher simply turned that into lat/long using some sort of a service, then the publisher SHOULD use [[adr]] to publish the actual human entered address information since communicates far more semantic information than a simple geo lat/long coordinate.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== Singular Properties ===

Note that all the properties in '''geo''' are singular properties, and thus the first descendant element with that class should take effect, any others being ignored.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the <code>title</code> attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. For this purpose, the special class name <code>value</code> is used to excerpt out the subset of the element that is the value of the property. See [[hcard|hCard]] for details on this.

=== Root Class Name ===

The root class name for an geo location is <code>geo</code>.

=== Property List ===

This is the list of properties in geo, taken from [[hcard|hCard]]:

* latitude
* longitude

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]], with the only difference being that "geo" is the root class name, rather than "vcard".

== Examples ==

This section is informative.

=== Sample geo ===

Here is a sample of published lat/long info (from [http://www.geocaching.com/seek/cache_details.aspx?guid=dc4754bf-64d5-4f28-8715-45ad2505c86f geocaching: Noble Steed]):

<pre><nowiki>
N 37° 24.491 W 122° 08.313
</nowiki></pre>

With geo markup:

<pre><nowiki>
<div class="geo">
<abbr class="latitude" title="37.408183">N 37° 24.491</abbr>
<abbr class="longitude" title="-122.13855">W 122° 08.313</abbr>
</div>
</nowiki></pre>

This geo might be displayed as:

<abbr class="latitude" title="37.408183">N 37° 24.491</abbr>
<abbr class="longitude" title="-122.13855">W 122° 08.313</abbr>

=== More Examples ===

See [http://microformats.org/wiki/hcard-examples#3.2.1_GEO_Type_Definition hCard example geo] for more examples.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published geos, outside their normal context of hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc., in addition to [[hcard|hCard]] examples in the wild. If you find geos outside of hCards anywhere else, feel free to add them to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://harry.hchen1.com/mylife.htm Harry Chen has marked up his geo location]
* [http://www.multimap.com Multimap.com] uses the geo microformat to mark up latitude and longitude values on map pages.
* [http://rasterweb.net/raster/ Pete Prodoehl] geotags posts on his blog.

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse geos outside the context of hCards. If you have an geo implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://blog.codeeg.com/ Calvin Yu] has written a [http://blog.codeeg.com/2006/01/28/using-microformats-to-plot-my-favorite-places/ web service that will allow you plot and describe places on a Yahoo Map easily] using [[hreview|hReview]] and [[geo]].
* [http://bluesmoon.blogspot.com/ Philip Tellis] has written a [http://bluesmoon.blogspot.com/2006/01/of-microformats-and-geocoding.html javascript to add maps to geo markup on pages]
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding geos and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* [http://bluesmoon.blogspot.com/ Philip Tellis] has written some javascript to [http://bluesmoon.blogspot.com/2006/01/of-microformats-and-geocoding.html convert the geo microformat to a google map] using [[geo]].

== References ==
=== Normative References ===
* [[hcard|hCard]]

=== Informative References ===
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426] ([http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426])
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]

=== Similar Work ===
* [[adr]]
* [[hcalendar|hCalendar]]
* [[XOXO]]

== Work in progress ==
This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added.

== Discussions ==

* See [http://www.technorati.com/cosmos/referer.html blogs discussing this page].

=== Q&A ===
* If you have any questions about hCard, check the [[hcard-faq|hCard FAQ]] first, and if you don't find answers, add your questions! (Odds are that any geo question will apply to hCard as well).

=== Issues ===
* Please add any issues with the specification to the separate [[hcard-issues|hCard issues]] document. Ditto.

== Additional Related Reading and Sites ==

* [http://www.census.gov/geo/www/tiger/tigermap.html TIGER Map Service]

hcard

2006-03-03T18:22:32Z

Raster: /* Examples in the wild */ fixed typo

<h1>hCard</h1>

hCard is a simple, open, distributed contact information format for people, companies, and organizations, which is suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCard is a 1:1 representation of the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in XHTML, one of several open [[microformats|microformat]] standards.

Want to get started with writing an [[hcard|hCard]]? Use the [http://microformats.org/code/hcard/creator hCard creator] to write up some contact information and publish it.

__TOC__

== Draft Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to: my good friend [http://vadim.com/ Vadim] who introduced me to vCard ''many'' years ago, and if I'd only paid more attention then, perhaps I could have helped a lot of people avoid wasting a lot of time reinventing various standards wheels.

== Introduction ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly interoperably implemented (e.g. Apple's "Address Book" application built into MacOSX).

In addition, many bloggers identify themselves by name and discuss their friends and family. With just a tad bit of structure, bloggers can discuss people in their blog(s) in such a way that spiders and other aggregators can retrieve this information, automatically convert them to vCards, and use them in any vCard application or service.

This specification introduces the '''hCard''' format, which is a 1:1 representation of the aforementioned vCard standard, in semantic XHTML. Bloggers can both embed vCards directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCard enables applications to retrieve information about such vCards directly from web pages without having to reference a separate file.

Use the [http://microformats.org/code/hcard/creator hCard creator], copy the HTML code it generates to your blog or website to publish your contact info.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== In General ===
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) forms the basis of hCard.

The basic format of hCard is to use vCard object/property names in lower-case for class names, and to map the nesting of vCard objects directly into nested XHTML elements.

=== More Semantic Equivalents ===
However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in vCard becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vcard"</code> in hCard.
* Similarly, <code>EMAIL</code> in vCard becomes <code><nowiki><a class="email" href="mailto:...">...</a></nowiki></code>
* <code>PHOTO</code> in vCard becomes <code><img class="photo" src="..." alt="Photo of ..." /></code>

=== Singular vs. Multivalued Properties ===

For properties which are singular (e.g. "N" and "FN"), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL"), each class instance should create a instance of that property.

==== Plural Properties Singularized ====

Since plural property names become their singular equivalents, even if the original plural property permitted only a single value with multiple components, those multiple components are represented each with their own singularly named property and the the property is effectively multivalued and subject to the above treatment of multivalued properties.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

Similarly, if an <code><img></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
# For other properties, the <code><img></code> element's '<code>alt</code>' attribute is the value of the property.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. This typically occurs when a property has a subtype, like TEL. For this purpose, the special class name "<code>value</code>" is introduced to excerpt out the subset of the element that is the value of the property. E.g. here is an hCard fragment for marking up a home phone number:

<pre><nowiki>
<span class="tel">
<span class="type">home</span>:
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

This hCard fragment could be displayed as:

home: +1.415.555.1212

=== Property Exceptions ===

vCard has several properties which either do not make sense on, or are already implied within the context of a web page. This section explains what to (not) do with them.

# '''NAME''', '''PROFILE''', '''SOURCE''', '''PRODID''', '''VERSION''' properties as defined in Sections 2.1.2, 2.1.3, 2.1.4, 3.6.3, 3.6.9 of RFC 2426. Content publishers MUST NOT use these properties in their hCards, and as such, hCard consumers/parsers MUST IGNORE these properties if they are found within an hCard. Instead. hCard to vCard converters SHOULD use the title of the page where the hCard is found (e.g. the <code><title></code> element in (X)HTML documents) to construct the NAME property, MAY output a PROFILE value of "<code>VCARD</code>" per RFC 2426, SHOULD use the URL of the page where the hCard is found to construct the SOURCE property (e.g. perhaps as a parameter to a URL/service that converts hCards to vCards), for an output vCard stream (e.g. a .vcf file). Only services/applications that output actual vCards should write the PRODID property, with the product identifier for said service/application. Similarly only such services/applications should write the VERSION property, with the value "3.0" (without quotes) per RFC2426 Section 3.6.9.

=== Organization Contact Info ===

If the "FN" and "ORG" properties have the exact same value (typically because they are set on the same element, e.g. class="fn org"), then the hCard represents contact information for a company or organization and should be treated as such. In this case the author MUST also NOT set the "N" property, or set it (and any sub-properties) explicitly to the empty string "". Thus parsers should handle the missing "N" property in this case by implying empty values for all the "N" sub-properties.

=== Implied "n" Optimization ===

Although vCard requires that the "N" property be present, the authors of the vCard specification (RFC 2426) themselves do not include "N" properties in their vCards near the end of the spec (p.38). This apparent contradiction can be resolved by simply allowing the "FN" property to imply "N" property values in typical cases provided in the spec. We do so explicitly in hCard.

If "FN" and "ORG" are not the same (see previous section), and the value of the "FN" property is exactly two words (separated by whitespace), and there is no explicit "N" property, then the "N" property is inferred from the "FN" property. For "FN"s with either one word see below, and for three or more, the author MUST explicitly markup the "N", except for the organization contact info case, [http://microformats.org/wiki/hcard#Organization_Contact_Info see above] for that.

# The content of "FN" is broken into two "words" separated by whitespace.
# The ''first'' word of the "FN" is interpreted as the "given-name" for the "N" property.
# The ''second/last'' word of the "FN" is interpreted as the "family-name" for the "N" property.
# Exception: If the first word ends in a "," comma OR if the second word is a single character (optionally followed by a period "."), then the first word (minus the comma at the end if any) is interpreted as the "family-name" and the second word is interpreted as the "given-name".

This allows simplification in the typical case of people stating:
* given-name (space) family-name
* family-name (comma) given-name
* family-name (comma) given-name-first-initial
* family-name (space) given-name-first-initial (optional period)

=== Implied "nickname" Optimization ===

Due to the prevalence of the use of nicknames/handles/usernames on the Web in actual content published on the Web (e.g. authors of [[hReview|reviews]]), hCard also has an implied "nickname" optimization to handle this.

Similar to the implied "n" optimization, if "FN" and "ORG" are not the same, and the value of the "FN" property is exactly one word, and there is no explicit "N" property, then:

# The content of the "FN" is treated as a "nickname" property value.
# Parsers should handle the missing "N" property by implying empty values for all the "N" sub-properties.

Note: the hCard may have additional explicit "nickname" property values in addition to the implied nickname.

=== Implied "organization-name" Optimization ===

The "ORG" property has two subproperties, organization-name and organization-unit. Very often authors only publish the organization-name. Thus if an "ORG" property has no "organization-name" inside it, then its entire contents MUST be treated as the "organization-name".

=== Root Class Name ===

The root class name for an hCard is "vcard".

=== Property List ===

This is the list of properties (and subproperties, in parantheses, like this) in hCard, taken from vCard:

* fn, n (family-name, given-name, additional-name, honorific-prefix, honorific-suffix), nickname, sort-string
* url, email (type, value), tel (type, value)
* adr (post-office-box, extended-address, street-address, locality, region, postal-code, country-name, type, value), label
* geo (latitude, longitude), tz
* photo, logo, sound, bday
* title, role, org (organization-name, organization-unit)
* category, note
* class, key, mailer, uid, rev
==== type subproperty values ====

The 'type' subproperty in particular takes different values depending on which property it is a subproperty of. These 'type' subproperty values are case-INSENSITIVE, meaning "Home" is the same as "home", as well as multivalued, e.g. a tel can be home and preferred:
<pre><nowiki>
<span class="tel"><span class="type">Home</span> (<span class="type">pref</span>erred):
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

The following lists are ''informative''. See RFC2426 sections 3.2.1 ADR, 3.3.1 TEL, and 3.3.2 EMAIL respectively for normative type values. They are repeated here for convenience. Default type subproperty value(s) is(are) first in each list and indicated in ALL CAPS. types may be multivalued.

* adr type: INTL, POSTAL, PARCEL, WORK, dom, home, pref
* tel type: VOICE, home, msg, work, pref, fax, cell, video, pager, bbs, modem, car, isdn, pcs
* email type: INTERNET, x400, pref, "other IANA registered address types"

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]].

== Examples ==

This section is informative.

=== Sample vCard ===

Here is a sample vCard:

<pre><nowiki>
BEGIN:VCARD
VERSION:3.0
N:Çelik;Tantek
FN:Tantek Çelik
URL:http://tantek.com
ORG:Technorati
END:VCARD
</nowiki></pre>

and an equivalent in hCard with various elements optimized appropriately. See [[hcard-example1-steps| hCard Example 1]] for the derivation.

<pre><nowiki>
<div class="vcard">
<a class="url fn" href="http://tantek.com/">Tantek Çelik</a>
<div class="org">Technorati</div>
</div>
</nowiki></pre>

This hCard might be displayed as:

[http://tantek.com/ Tantek Çelik]<br />
Technorati

Note: The version information is unnecessary in hCard markup directly since the version will be defined by the profile of hCard that is used/referred to in the 'profile' attribute of the <head> element.

=== More Examples ===

See [[hcard-examples]] for more examples, including all examples from vCard RFC 2426 converted into hCard.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If you have an hCard on your own page, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.

* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* [http://www.gr0w.com/articles/press/growsearch_launched_press_release/ GrowSearch Launched (Press Release)] uses an hCard to provide Press Contact Point.
* The [http://www.arborday.org/ National Arbor Day Foundation] has started using hCards for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] has numerous hCards, especially on the [http://www.multipack.co.uk/members/ members page], as well as the next meeting information.
* [http://deadringrancor.livejournal.com/ Justin McDowell] used an hCard when [http://deadringrancor.livejournal.com/221332.html referring to a person in his blog post]
* [http://davecardwell.co.uk/cv/ Dave Cardwell] has included his hCard in his Curriculum Vitae.
* [http://blog.usweb.com/ Shaun Shull] has written a great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], and has included his [[hcard|hCard]] as one of the examples.
* [http://www.thefutureoftheweb.com/ Jesse Skinner] has written a simple [http://www.thefutureoftheweb.com/blog/2006/1/hcard tutorial with examples]
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the venue, contacts, and program committee members all with hCard.
* [http://www.avf-nexus.co.uk AVF-Nexus] have a hCard on their [http://www.avf-nexus.co.uk/contact/ contact page] - (by [http://creation.uk.com Creation"])
* [http://www.thefantasticos.com/andrew/ Andrew White] posted [http://www.thefantasticos.com/andrew/index.php/my-hcard/ his hCard] and [http://www.thefantasticos.com/andrew/index.php/62/microformats-the-should-have-been-obvious-web-dev-tool/ blogged about it].
* [http://www.2sheds.ru Oleg "2sheds" Kourapov] in his [http://www.2sheds.ru/blog/ blog] ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog X2V]) has turned personal profile into hCard ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/hcard.html X2V]) and his blogroll - into combination XFN/hCards ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/friends.html X2V])
* [http://www.approveddesign.co.uk Approved Design Consultancy] have a hCard on their [http://www.approveddesign.co.uk/about/contact/ contact page] as well as on their [http://www.approveddesign.co.uk/about/people/ people section] - (by [http://creation.uk.com Creation"])
* [http://weblog.200ok.com.au/ Ben Buchanan] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin Morris] have [http://weblog.200ok.com.au/2006/01/griffith-phonebook-adds-hcard-and.html implemented hCards and vCards] for the [http://www.griffith.edu.au Griffith University] [http://www.griffith.edu.au/find/content_phonebook.html online phone book]. Eg. [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=ben+buchanan&format=search Ben's vCard] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin's vCard]
* WWF-Australia [http://wwf.org.au/about/contactdetails/ contact details page]
* [http://rasterweb.net/raster/ Pete Prodoehl] used the hCard format on his [http://rasterweb.net/raster/contact.html Contact page].

=== Examples ===
* [http://thoughtport.blogspot.com/ Aiden Kenny] hasn't published his hCard yet, but he has [http://thoughtport.blogspot.com/2005/07/elemental-particles-of-web.html published his hCard icon]: http://photos1.blogger.com/blogger/4224/444/320/AK-Hcard-icon.gif
* [http://thedredge.org Andy Hume] uses the hcard format to mark-up the names and URLs of commentors on his blog.
* [http://www.bidclix.com/ BidClix]'s [http://www.bidclix.com/AboutContact.html Contact BidClix] page has it's ''contact info'' marked up with an hCard.
* [http://suda.co.uk/ Brian Suda] has managed to embed a photo in [http://suda.co.uk/contact/ his hCard] through the [http://www.ietf.org/rfc/rfc2397.txt data uri scheme] by converting the image to BASE64 code. View the Source to see how this is accomplished. [http://suda.co.uk/projects/X2V/get-vcard.php?uri=http%3A//suda.co.uk/contact/ The X2V link] will extract the image and encode it for a vCard which will be displayed in some address book applications.
* [http://cinematreasures.org Cinema Treasures] uses hCard to markup venue information for 10,000+ movie theaters.
* [http://www.w3.org/People/Connolly/events/ Dan Connolly's index of events and talks] has hCards for many of the people he has met at those events.
* [http://doncrowley.blogspot.com/ Don Crowley] has published [http://www.crowley.nl/hcard.html his hCard] as well as a nifty hCard button: http://www.crowley.nl/images/hcard.png
* [http://loadaveragezero.com/hnav/contact.php Douglas W. Clifton] added all types of contact information
* [http://evdb.com EVDB], the Events and Venues Database, publishes all venue detail pages with embedded hCards.
* [http://www.iowamilitaryveteransband.com/members/ Iowa Military Veterans Band Contacts] - 95 hCards [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ marked up by Scott Reynen]
* [http://JackWolfgang.blogspot.com Jack L. Wolfgang II] has [http://jack.randomata.com/resume/ converted the addresses in his resume to hCards].
* [http://www.efas.fupl.asso.fr/efas/_Mathieu-Drouet_.html Mathieu Drouet] and [http://www.efas.fupl.asso.fr/efas/_Annie-Leger_.html Annie Leger] both have hCards
* [http://www.ndunn.com Neil Dunn] has published his rather [http://www.ndunn.com/2005/10/7/hCard good looking hCard]
* [http://www.oliverbrown.me.uk/ Oliver Brown] has published his hCard.
* [http://www.paradigmproductions.org/contact/ Paradigm Productions] published a vcard as a ul (marked up by [http://www.linkingarts.com/ Peter Jacobson])
* [http://www.splintered.co.uk/ Patrick H. Lauke] has marked up [http://www.splintered.co.uk/about/ his contact info with hCard].
* [http://blah Paul Schreiber has published his hCard on [http://paulschreiber.com/about/?contact his about page].
* [http://paulschreiber.com/blog/ Paul Schreiber]'s [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCards for upcoming artists, as well as an hCard for the page itself. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCards for all past artists.
* [http://www.paulmichaelsmith.com/blog/hcard.htm Paul Smith] has created an hCard page which is Human Readable, and a link to X2V passing the same hCard page to generate a vCard.
* [http://www.windley.com/archives/2005/07/hcards_trying_o.shtml Phil Windley has published] [http://phil.windley.org/hcard.html his hCard].
* [http://www.go-curiosity.com/about.htm Piercarlo Slavazza] has published an hCard.
* [http://zooibaai.nl/ Rob Mientjes] has published his hCard on [http://zooibaai.nl/about/ his about page].
* [http://rbach.priv.at/Contact Robert Bachmann] has published his hCard and [http://rbach.priv.at/Images/hcard a button].
* [http://blah Scott Reynen has published his hCard on [http://www.randomchaos.com/document.php?source=scott_reynen his profile page].
* [http://www.stackframe.com/ StackFrame, LLC] has published [http://www.stackframe.com/people/ employee] and [http://www.stackframe.com/contact/ general] contact information as hCards.
* [http://www.wolfsreign.com Steven Ametjan] has published his hCard on [http://www.wolfsreign.com/about/ his about page].
* [http://tantek.com/microformats/2005/syndicate/speakers-list.html Syndicate - Speaker List] as a set of hCards
* [http://tagcamp.org/index.cgi?ContactList TagCamp contact list]
* [http://tantek.com/log Tantek's Thoughts] includes an inline author hCard at the bottom of the page.
* [http://technorati.com/ Technorati]'s [http://www.technorati.com/about/ About page] lists their '''Media Contact'''
* [http://www.deadringerart.com/ The Brothers McDowell] have hCards at their Contact page.
* [http://twinsparc.com/ Twinsparc] put an hCard in the header and footer of all their pages.
* [http://tantek.com/microformats/2005/web2/speakers.html Web 2.0 Conference speakers page marked up with hCard]
* [http://we05.com/ Web Essentials 05] marked up all their [http://we05.com/presenters.cfm presenters with hCard].

=== Examples with some problems ===
* [http://gbraad.nl/ Gerard Braad] has published an example on his [http://gbraad.nl/site/?p=profile profile] page that is almost consistent with his original [http://gbraad.nl/files/gbraad.vcf vCard] file. Also progress is made for transforming his [http://files.gbraad.nl/foaf.rdf FoaF] file to a hCard encoded representation. (also done for my spouse:[http://spouse.gbraad.nl/site/?p=profile Yong Yuan])
** (2005-09-27) PASSED, PASSED
** WARNINGS
*** uses 'n given-name' and 'n family-name' instead of nesting the given- and family- names inside the 'n'
*** has one 'tel' value with a bunch of values stuffed in
*** probably more problems --[[User:RyanKing|RyanKing]] 17:19, 5 Jan 2006 (PST)
* [http://www.kerihenare.com/ Keri Henare] has marked up his [http://www.kerihenare.com/contact/ contact info page] with hCard.
** (2005-09-27) PASSED
** (2005-11-01) hCard completely rewritten
** WARNING - type subproperty in classname
* [http://kinrowan.net/ Cori Schlegel] [http://kinrowan.net/blog/wp/archives/2005/07/08/a-problem-with-the-structured-blogging-plug-in-for-wordpress/ discusses how he has updated] [http://kinrowan.net/blog/contact his contact page with hCard]
** INVALID - using 'prefix' instead of 'honorific-prefix' and type's in classnames (in both adr and tel) and has two photo's (the second could be 'logo') --[[User:RyanKing|RyanKing]] 15:15, 5 Jan 2006 (PST)
* The good ship [http://styrheim.com/test/leonid.html Leonid Miloslavskiy] spotted in the North Atlantic
** INVALID --[[User:RyanKing|RyanKing]] 00:50, 27 Oct 2005 (PDT)
*** class="family" should probably be family-name
*** the "n" property is missing and the "n" optimization can't be applied
*** the first geo propery is empty, the second one is invalid (ie, it doesn't contain lat/long)
* [http://landsbank.fo/#hCard Landsbanki Føroya]
** INVALID - using embedded rdf/xml invalidly
* [http://chrischerry.name/blog/contact/ Chris Cherry's contact page with his hCard]
** WARNING - uses class="cell" instead of <span class="type">cell</span>
* [http://www.bath.ac.uk/contact/ University of Bath] Person Finder results are encoded with hCards so you can easily create a vCard from any result.
** ERROR - attempt to use Implied-N optimization where that's not possible. --[[User:RyanKing|RyanKing]] 14:29, 5 Jan 2006 (PST)
** Error appears for external users only. Won't be fixed any time soon. -- [[User:PhilWilson|PhilWilson]] 00:03, 28 Jan 2006 (GMT)
* [http://richi.co.uk/blog/2005/12/structured-blogging.html Richi Jennings] has put up his attempt
** INVALID, missing FN --[[User:RyanKing|RyanKing]] 12:47, 5 Jan 2006 (PST)
* [http://www.shiftingpixel.com/about/ shifting pixel photoblog] has published an hCard.
** "organization_name" should be "organization-name" (s/_/-/), otherwise good --[[User:RyanKing|RyanKing]] 14:01, 5 Jan 2006 (PST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCards. If you have an hCard implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://blog.codeeg.com/tails-firefox-extension/ Tails is a Firefox Extension] that will display the presence and details of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage.
* [http://www.stripytshirt.co.uk/features/firefox/smartzilla Smartzilla is a Firefox Extension] that finds hCards on web pages and lets you add them to your addressbook.
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCard and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* There is [http://flickr.com/photos/factoryjoe/68755089/ evidence of built-in hCard support in the Konqueror browser]. Specifically, Konqueror 3.5, in KDE 3.5 (kubuntu Breezy w/ update).
* There is [http://tagcamp.org/index.cgi?ContactList evidence of a kwiki plugin for hCards]. Update: the [http://svn.kwiki.org/cwest/Kwiki-hCard/ hCard kwiki plugin svn repository]. See the [http://microwiki.caseywest.com/index.cgi?hCard documentation of the hCard kwiki plugin].
* [http://suda.co.uk/projects/X2V/ X2V] is a bookmarklet that parses hCard and produces a .vcf (vCard) stream. Note: needs to be updated as the spec is refined
* [http://www.stripytshirt.co.uk Duncan Walker] has built [http://www.stripytshirt.co.uk/features/firefox/smartzilla a Firefox extension] that gets hCard data from a webpage, uses Brian Suda's XSL (locally) to transform it to vcard format and opens the resulting .vcf file.
* [http://george.hotelling.net/90percent/ George] has written a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script] that detects hCards and allows users to easily add them to their address book application. Relies on the X2V web service to do the conversion.
* [http://blogmatrix.blogmatrix.com/ David Janes] has written a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCards, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003376 provides a popup menu of actions]. The hCard to vCard conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''
* [http://diveintomark.org/ Mark Pilgrim] has also written an [http://diveintomark.org/projects/greasemonkey/hcard/ hCard parser Greasemonkey user script]. It is self-contained and does not rely on the X2V web service.
* [http://www.oliverbrown.me.uk/2005/09/03/a-working-microformats-extension-to-simplexml/ Oliver Brown] has written an "extension" to [http://www.php.net/simplexml SimpleXML] that gives simple access to hCard information in PHP 5.
* [http://thedredge.org/ Andrew D. Hume] has built a system (Wordpress plugin?) for [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hcards in your blog] to represent people leaving comments on blog posts.
* The [http://tantek.com/microformats/hcard-creator.html hCard creator] is a very simple, yet illustrative, open source user interface / form / script which creates an hCard in real-time as you type in a set of contact information.
* [http://greenbytes.de/tech/webdav/rfc2629.xslt rfc2629.xslt] now attempts to generate hCard information ([http://ietf.org/rfc/rfc2629 RFC2629] is an XML format for authoring RFCs and Internet Drafts, see [http://greenbytes.de/tech/webdav/rfc2629xslt/rfc2629xslt.html example document])
* [http://tantek.com/microformats/buddylist2hcards.html iChat buddy list to hCards] - Open source AppleScript to automatically convert one's buddy list in the MacOSX iChat AIM client into a valid XHTML 1.0 Strict list of hCards.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] is a collection of palmpilot and sidekick tools. It includes X2V derivatives xhtml2hcard.xsl and toICal.xsl plus some [http://dev.w3.org/cvsweb/2001/palmagent/hcardTest.html hcardTest] materials
* [http://www.openpsa.org/ OpenPsa 2.x] CRM application uses hCard for all person listings. The widget is [http://www.midgard-project.org/midcom-permalink-922834501b71daad856f35ec593c7a6d reusable across Midgard CMS]
* [http://www.metonymie.com Emiliano Martínez Luque] has written an experimental [http://www.metonymie.com/hCard_extract/app.html hCard finder and structured search application] that finds hCards within a given set of URLs and returns the ones that match the specified search criteria.

== Additional Applications ==
This section is '''informative'''.

There are numerous potential additional uses and applications for hCards on the Web. The following are merely a few thoughts and possibilities that folks have come up with:

* As an open standard/format for [http://www.gravatar.com/ Gravatars].
* Marking up individual authors of blog posts on a group blog
* Marking up people's names and URLs in a blogroll
* Any reference to people in blog posts (e.g. when citing them, or referencing them, or describing them, by name).
* ...

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426]

=== Informative References ===
* [http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426]
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcard hCard term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* Contributed from http://developers.technorati.com/wiki/hCard.
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Specifications That Use hCard ====
* [[adr]]
* [[geo]]
* [[hcalendar|hCalendar]]
* [[hreview|hReview]]

==== Similar Work ====
* [http://www.intertwingly.net/wiki/pie/PaceBetterPersonElement Atom PaceBetterPersonElement]
* [http://www.jabber.org/jeps/jep-0054.html JEP-0054: vcard-temp]

== Related Pages ==
* [[hcard-faq|hCard FAQ]] - If you have any questions about hCard, check here, and if you don't find answers, add your questions!
* [[hcard-parsing|hCard parsing]] - Normatively details of how to parse hCards.
* [[hcard-issues|hCard issues]] - Please add any issues with the specification to the issues page.
* [[hcard-profile|hCard profile]] - The XMDP profile for hCard

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.

* [[hcard-brainstorming|hCard Brainstorming]] - where we are keeping our brainstorms and other explorations relating to hCard
* [[hcard-tests|hCard tests]] - a wiki page with actual embedded hCards to try parsing.

== Further Reading ==
* [http://www.digital-web.com/articles/microformats_primer/ Digital Web Magazine: Microformats Primer] by Garrett Dimon has a good intro to hCard
* [http://24ways.org/advent/practical-microformats-with-hcard Practical Microformats with hCard] by Drew McLellan
* [http://thedredge.org/ Andrew D. Hume] has written a blog post on [http://usabletype.com/articles/2005/usable-microformats/ usable microformats] which discusses hCard
* [http://www.thefutureoftheweb.com/blog/2006/1/hcard Jesse Skinner's introduction to hCard]
* [http://blog.usweb.com/ Shaun Shull's] great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], including his [[hcard|hCard]] as an example.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page] and the [http://technorati.com/tags/hcard hCard tag]

hcard

2006-03-03T18:21:35Z

Raster: /* Examples in the wild */ added link

<h1>hCard</h1>

hCard is a simple, open, distributed contact information format for people, companies, and organizations, which is suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCard is a 1:1 representation of the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in XHTML, one of several open [[microformats|microformat]] standards.

Want to get started with writing an [[hcard|hCard]]? Use the [http://microformats.org/code/hcard/creator hCard creator] to write up some contact information and publish it.

__TOC__

== Draft Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to: my good friend [http://vadim.com/ Vadim] who introduced me to vCard ''many'' years ago, and if I'd only paid more attention then, perhaps I could have helped a lot of people avoid wasting a lot of time reinventing various standards wheels.

== Introduction ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly interoperably implemented (e.g. Apple's "Address Book" application built into MacOSX).

In addition, many bloggers identify themselves by name and discuss their friends and family. With just a tad bit of structure, bloggers can discuss people in their blog(s) in such a way that spiders and other aggregators can retrieve this information, automatically convert them to vCards, and use them in any vCard application or service.

This specification introduces the '''hCard''' format, which is a 1:1 representation of the aforementioned vCard standard, in semantic XHTML. Bloggers can both embed vCards directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCard enables applications to retrieve information about such vCards directly from web pages without having to reference a separate file.

Use the [http://microformats.org/code/hcard/creator hCard creator], copy the HTML code it generates to your blog or website to publish your contact info.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== In General ===
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) forms the basis of hCard.

The basic format of hCard is to use vCard object/property names in lower-case for class names, and to map the nesting of vCard objects directly into nested XHTML elements.

=== More Semantic Equivalents ===
However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in vCard becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vcard"</code> in hCard.
* Similarly, <code>EMAIL</code> in vCard becomes <code><nowiki><a class="email" href="mailto:...">...</a></nowiki></code>
* <code>PHOTO</code> in vCard becomes <code><img class="photo" src="..." alt="Photo of ..." /></code>

=== Singular vs. Multivalued Properties ===

For properties which are singular (e.g. "N" and "FN"), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL"), each class instance should create a instance of that property.

==== Plural Properties Singularized ====

Since plural property names become their singular equivalents, even if the original plural property permitted only a single value with multiple components, those multiple components are represented each with their own singularly named property and the the property is effectively multivalued and subject to the above treatment of multivalued properties.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

Similarly, if an <code><img></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
# For other properties, the <code><img></code> element's '<code>alt</code>' attribute is the value of the property.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. This typically occurs when a property has a subtype, like TEL. For this purpose, the special class name "<code>value</code>" is introduced to excerpt out the subset of the element that is the value of the property. E.g. here is an hCard fragment for marking up a home phone number:

<pre><nowiki>
<span class="tel">
<span class="type">home</span>:
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

This hCard fragment could be displayed as:

home: +1.415.555.1212

=== Property Exceptions ===

vCard has several properties which either do not make sense on, or are already implied within the context of a web page. This section explains what to (not) do with them.

# '''NAME''', '''PROFILE''', '''SOURCE''', '''PRODID''', '''VERSION''' properties as defined in Sections 2.1.2, 2.1.3, 2.1.4, 3.6.3, 3.6.9 of RFC 2426. Content publishers MUST NOT use these properties in their hCards, and as such, hCard consumers/parsers MUST IGNORE these properties if they are found within an hCard. Instead. hCard to vCard converters SHOULD use the title of the page where the hCard is found (e.g. the <code><title></code> element in (X)HTML documents) to construct the NAME property, MAY output a PROFILE value of "<code>VCARD</code>" per RFC 2426, SHOULD use the URL of the page where the hCard is found to construct the SOURCE property (e.g. perhaps as a parameter to a URL/service that converts hCards to vCards), for an output vCard stream (e.g. a .vcf file). Only services/applications that output actual vCards should write the PRODID property, with the product identifier for said service/application. Similarly only such services/applications should write the VERSION property, with the value "3.0" (without quotes) per RFC2426 Section 3.6.9.

=== Organization Contact Info ===

If the "FN" and "ORG" properties have the exact same value (typically because they are set on the same element, e.g. class="fn org"), then the hCard represents contact information for a company or organization and should be treated as such. In this case the author MUST also NOT set the "N" property, or set it (and any sub-properties) explicitly to the empty string "". Thus parsers should handle the missing "N" property in this case by implying empty values for all the "N" sub-properties.

=== Implied "n" Optimization ===

Although vCard requires that the "N" property be present, the authors of the vCard specification (RFC 2426) themselves do not include "N" properties in their vCards near the end of the spec (p.38). This apparent contradiction can be resolved by simply allowing the "FN" property to imply "N" property values in typical cases provided in the spec. We do so explicitly in hCard.

If "FN" and "ORG" are not the same (see previous section), and the value of the "FN" property is exactly two words (separated by whitespace), and there is no explicit "N" property, then the "N" property is inferred from the "FN" property. For "FN"s with either one word see below, and for three or more, the author MUST explicitly markup the "N", except for the organization contact info case, [http://microformats.org/wiki/hcard#Organization_Contact_Info see above] for that.

# The content of "FN" is broken into two "words" separated by whitespace.
# The ''first'' word of the "FN" is interpreted as the "given-name" for the "N" property.
# The ''second/last'' word of the "FN" is interpreted as the "family-name" for the "N" property.
# Exception: If the first word ends in a "," comma OR if the second word is a single character (optionally followed by a period "."), then the first word (minus the comma at the end if any) is interpreted as the "family-name" and the second word is interpreted as the "given-name".

This allows simplification in the typical case of people stating:
* given-name (space) family-name
* family-name (comma) given-name
* family-name (comma) given-name-first-initial
* family-name (space) given-name-first-initial (optional period)

=== Implied "nickname" Optimization ===

Due to the prevalence of the use of nicknames/handles/usernames on the Web in actual content published on the Web (e.g. authors of [[hReview|reviews]]), hCard also has an implied "nickname" optimization to handle this.

Similar to the implied "n" optimization, if "FN" and "ORG" are not the same, and the value of the "FN" property is exactly one word, and there is no explicit "N" property, then:

# The content of the "FN" is treated as a "nickname" property value.
# Parsers should handle the missing "N" property by implying empty values for all the "N" sub-properties.

Note: the hCard may have additional explicit "nickname" property values in addition to the implied nickname.

=== Implied "organization-name" Optimization ===

The "ORG" property has two subproperties, organization-name and organization-unit. Very often authors only publish the organization-name. Thus if an "ORG" property has no "organization-name" inside it, then its entire contents MUST be treated as the "organization-name".

=== Root Class Name ===

The root class name for an hCard is "vcard".

=== Property List ===

This is the list of properties (and subproperties, in parantheses, like this) in hCard, taken from vCard:

* fn, n (family-name, given-name, additional-name, honorific-prefix, honorific-suffix), nickname, sort-string
* url, email (type, value), tel (type, value)
* adr (post-office-box, extended-address, street-address, locality, region, postal-code, country-name, type, value), label
* geo (latitude, longitude), tz
* photo, logo, sound, bday
* title, role, org (organization-name, organization-unit)
* category, note
* class, key, mailer, uid, rev
==== type subproperty values ====

The 'type' subproperty in particular takes different values depending on which property it is a subproperty of. These 'type' subproperty values are case-INSENSITIVE, meaning "Home" is the same as "home", as well as multivalued, e.g. a tel can be home and preferred:
<pre><nowiki>
<span class="tel"><span class="type">Home</span> (<span class="type">pref</span>erred):
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

The following lists are ''informative''. See RFC2426 sections 3.2.1 ADR, 3.3.1 TEL, and 3.3.2 EMAIL respectively for normative type values. They are repeated here for convenience. Default type subproperty value(s) is(are) first in each list and indicated in ALL CAPS. types may be multivalued.

* adr type: INTL, POSTAL, PARCEL, WORK, dom, home, pref
* tel type: VOICE, home, msg, work, pref, fax, cell, video, pager, bbs, modem, car, isdn, pcs
* email type: INTERNET, x400, pref, "other IANA registered address types"

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]].

== Examples ==

This section is informative.

=== Sample vCard ===

Here is a sample vCard:

<pre><nowiki>
BEGIN:VCARD
VERSION:3.0
N:Çelik;Tantek
FN:Tantek Çelik
URL:http://tantek.com
ORG:Technorati
END:VCARD
</nowiki></pre>

and an equivalent in hCard with various elements optimized appropriately. See [[hcard-example1-steps| hCard Example 1]] for the derivation.

<pre><nowiki>
<div class="vcard">
<a class="url fn" href="http://tantek.com/">Tantek Çelik</a>
<div class="org">Technorati</div>
</div>
</nowiki></pre>

This hCard might be displayed as:

[http://tantek.com/ Tantek Çelik]<br />
Technorati

Note: The version information is unnecessary in hCard markup directly since the version will be defined by the profile of hCard that is used/referred to in the 'profile' attribute of the <head> element.

=== More Examples ===

See [[hcard-examples]] for more examples, including all examples from vCard RFC 2426 converted into hCard.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If you have an hCard on your own page, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.

* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* [http://www.gr0w.com/articles/press/growsearch_launched_press_release/ GrowSearch Launched (Press Release)] uses an hCard to provide Press Contact Point.
* The [http://www.arborday.org/ National Arbor Day Foundation] has started using hCards for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] has numerous hCards, especially on the [http://www.multipack.co.uk/members/ members page], as well as the next meeting information.
* [http://deadringrancor.livejournal.com/ Justin McDowell] used an hCard when [http://deadringrancor.livejournal.com/221332.html referring to a person in his blog post]
* [http://davecardwell.co.uk/cv/ Dave Cardwell] has included his hCard in his Curriculum Vitae.
* [http://blog.usweb.com/ Shaun Shull] has written a great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], and has included his [[hcard|hCard]] as one of the examples.
* [http://www.thefutureoftheweb.com/ Jesse Skinner] has written a simple [http://www.thefutureoftheweb.com/blog/2006/1/hcard tutorial with examples]
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the venue, contacts, and program committee members all with hCard.
* [http://www.avf-nexus.co.uk AVF-Nexus] have a hCard on their [http://www.avf-nexus.co.uk/contact/ contact page] - (by [http://creation.uk.com Creation"])
* [http://www.thefantasticos.com/andrew/ Andrew White] posted [http://www.thefantasticos.com/andrew/index.php/my-hcard/ his hCard] and [http://www.thefantasticos.com/andrew/index.php/62/microformats-the-should-have-been-obvious-web-dev-tool/ blogged about it].
* [http://www.2sheds.ru Oleg "2sheds" Kourapov] in his [http://www.2sheds.ru/blog/ blog] ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog X2V]) has turned personal profile into hCard ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/hcard.html X2V]) and his blogroll - into combination XFN/hCards ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/friends.html X2V])
* [http://www.approveddesign.co.uk Approved Design Consultancy] have a hCard on their [http://www.approveddesign.co.uk/about/contact/ contact page] as well as on their [http://www.approveddesign.co.uk/about/people/ people section] - (by [http://creation.uk.com Creation"])
* [http://weblog.200ok.com.au/ Ben Buchanan] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin Morris] have [http://weblog.200ok.com.au/2006/01/griffith-phonebook-adds-hcard-and.html implemented hCards and vCards] for the [http://www.griffith.edu.au Griffith University] [http://www.griffith.edu.au/find/content_phonebook.html online phone book]. Eg. [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=ben+buchanan&format=search Ben's vCard] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin's vCard]
* WWF-Australia [http://wwf.org.au/about/contactdetails/ contact details page]
* [http://rasterweb.net/raster/ Pete Prodoehl] included use the hCard format on his [http://rasterweb.net/raster/contact.html Contact page].

=== Examples ===
* [http://thoughtport.blogspot.com/ Aiden Kenny] hasn't published his hCard yet, but he has [http://thoughtport.blogspot.com/2005/07/elemental-particles-of-web.html published his hCard icon]: http://photos1.blogger.com/blogger/4224/444/320/AK-Hcard-icon.gif
* [http://thedredge.org Andy Hume] uses the hcard format to mark-up the names and URLs of commentors on his blog.
* [http://www.bidclix.com/ BidClix]'s [http://www.bidclix.com/AboutContact.html Contact BidClix] page has it's ''contact info'' marked up with an hCard.
* [http://suda.co.uk/ Brian Suda] has managed to embed a photo in [http://suda.co.uk/contact/ his hCard] through the [http://www.ietf.org/rfc/rfc2397.txt data uri scheme] by converting the image to BASE64 code. View the Source to see how this is accomplished. [http://suda.co.uk/projects/X2V/get-vcard.php?uri=http%3A//suda.co.uk/contact/ The X2V link] will extract the image and encode it for a vCard which will be displayed in some address book applications.
* [http://cinematreasures.org Cinema Treasures] uses hCard to markup venue information for 10,000+ movie theaters.
* [http://www.w3.org/People/Connolly/events/ Dan Connolly's index of events and talks] has hCards for many of the people he has met at those events.
* [http://doncrowley.blogspot.com/ Don Crowley] has published [http://www.crowley.nl/hcard.html his hCard] as well as a nifty hCard button: http://www.crowley.nl/images/hcard.png
* [http://loadaveragezero.com/hnav/contact.php Douglas W. Clifton] added all types of contact information
* [http://evdb.com EVDB], the Events and Venues Database, publishes all venue detail pages with embedded hCards.
* [http://www.iowamilitaryveteransband.com/members/ Iowa Military Veterans Band Contacts] - 95 hCards [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ marked up by Scott Reynen]
* [http://JackWolfgang.blogspot.com Jack L. Wolfgang II] has [http://jack.randomata.com/resume/ converted the addresses in his resume to hCards].
* [http://www.efas.fupl.asso.fr/efas/_Mathieu-Drouet_.html Mathieu Drouet] and [http://www.efas.fupl.asso.fr/efas/_Annie-Leger_.html Annie Leger] both have hCards
* [http://www.ndunn.com Neil Dunn] has published his rather [http://www.ndunn.com/2005/10/7/hCard good looking hCard]
* [http://www.oliverbrown.me.uk/ Oliver Brown] has published his hCard.
* [http://www.paradigmproductions.org/contact/ Paradigm Productions] published a vcard as a ul (marked up by [http://www.linkingarts.com/ Peter Jacobson])
* [http://www.splintered.co.uk/ Patrick H. Lauke] has marked up [http://www.splintered.co.uk/about/ his contact info with hCard].
* [http://blah Paul Schreiber has published his hCard on [http://paulschreiber.com/about/?contact his about page].
* [http://paulschreiber.com/blog/ Paul Schreiber]'s [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCards for upcoming artists, as well as an hCard for the page itself. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCards for all past artists.
* [http://www.paulmichaelsmith.com/blog/hcard.htm Paul Smith] has created an hCard page which is Human Readable, and a link to X2V passing the same hCard page to generate a vCard.
* [http://www.windley.com/archives/2005/07/hcards_trying_o.shtml Phil Windley has published] [http://phil.windley.org/hcard.html his hCard].
* [http://www.go-curiosity.com/about.htm Piercarlo Slavazza] has published an hCard.
* [http://zooibaai.nl/ Rob Mientjes] has published his hCard on [http://zooibaai.nl/about/ his about page].
* [http://rbach.priv.at/Contact Robert Bachmann] has published his hCard and [http://rbach.priv.at/Images/hcard a button].
* [http://blah Scott Reynen has published his hCard on [http://www.randomchaos.com/document.php?source=scott_reynen his profile page].
* [http://www.stackframe.com/ StackFrame, LLC] has published [http://www.stackframe.com/people/ employee] and [http://www.stackframe.com/contact/ general] contact information as hCards.
* [http://www.wolfsreign.com Steven Ametjan] has published his hCard on [http://www.wolfsreign.com/about/ his about page].
* [http://tantek.com/microformats/2005/syndicate/speakers-list.html Syndicate - Speaker List] as a set of hCards
* [http://tagcamp.org/index.cgi?ContactList TagCamp contact list]
* [http://tantek.com/log Tantek's Thoughts] includes an inline author hCard at the bottom of the page.
* [http://technorati.com/ Technorati]'s [http://www.technorati.com/about/ About page] lists their '''Media Contact'''
* [http://www.deadringerart.com/ The Brothers McDowell] have hCards at their Contact page.
* [http://twinsparc.com/ Twinsparc] put an hCard in the header and footer of all their pages.
* [http://tantek.com/microformats/2005/web2/speakers.html Web 2.0 Conference speakers page marked up with hCard]
* [http://we05.com/ Web Essentials 05] marked up all their [http://we05.com/presenters.cfm presenters with hCard].

=== Examples with some problems ===
* [http://gbraad.nl/ Gerard Braad] has published an example on his [http://gbraad.nl/site/?p=profile profile] page that is almost consistent with his original [http://gbraad.nl/files/gbraad.vcf vCard] file. Also progress is made for transforming his [http://files.gbraad.nl/foaf.rdf FoaF] file to a hCard encoded representation. (also done for my spouse:[http://spouse.gbraad.nl/site/?p=profile Yong Yuan])
** (2005-09-27) PASSED, PASSED
** WARNINGS
*** uses 'n given-name' and 'n family-name' instead of nesting the given- and family- names inside the 'n'
*** has one 'tel' value with a bunch of values stuffed in
*** probably more problems --[[User:RyanKing|RyanKing]] 17:19, 5 Jan 2006 (PST)
* [http://www.kerihenare.com/ Keri Henare] has marked up his [http://www.kerihenare.com/contact/ contact info page] with hCard.
** (2005-09-27) PASSED
** (2005-11-01) hCard completely rewritten
** WARNING - type subproperty in classname
* [http://kinrowan.net/ Cori Schlegel] [http://kinrowan.net/blog/wp/archives/2005/07/08/a-problem-with-the-structured-blogging-plug-in-for-wordpress/ discusses how he has updated] [http://kinrowan.net/blog/contact his contact page with hCard]
** INVALID - using 'prefix' instead of 'honorific-prefix' and type's in classnames (in both adr and tel) and has two photo's (the second could be 'logo') --[[User:RyanKing|RyanKing]] 15:15, 5 Jan 2006 (PST)
* The good ship [http://styrheim.com/test/leonid.html Leonid Miloslavskiy] spotted in the North Atlantic
** INVALID --[[User:RyanKing|RyanKing]] 00:50, 27 Oct 2005 (PDT)
*** class="family" should probably be family-name
*** the "n" property is missing and the "n" optimization can't be applied
*** the first geo propery is empty, the second one is invalid (ie, it doesn't contain lat/long)
* [http://landsbank.fo/#hCard Landsbanki Føroya]
** INVALID - using embedded rdf/xml invalidly
* [http://chrischerry.name/blog/contact/ Chris Cherry's contact page with his hCard]
** WARNING - uses class="cell" instead of <span class="type">cell</span>
* [http://www.bath.ac.uk/contact/ University of Bath] Person Finder results are encoded with hCards so you can easily create a vCard from any result.
** ERROR - attempt to use Implied-N optimization where that's not possible. --[[User:RyanKing|RyanKing]] 14:29, 5 Jan 2006 (PST)
** Error appears for external users only. Won't be fixed any time soon. -- [[User:PhilWilson|PhilWilson]] 00:03, 28 Jan 2006 (GMT)
* [http://richi.co.uk/blog/2005/12/structured-blogging.html Richi Jennings] has put up his attempt
** INVALID, missing FN --[[User:RyanKing|RyanKing]] 12:47, 5 Jan 2006 (PST)
* [http://www.shiftingpixel.com/about/ shifting pixel photoblog] has published an hCard.
** "organization_name" should be "organization-name" (s/_/-/), otherwise good --[[User:RyanKing|RyanKing]] 14:01, 5 Jan 2006 (PST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCards. If you have an hCard implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://blog.codeeg.com/tails-firefox-extension/ Tails is a Firefox Extension] that will display the presence and details of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage.
* [http://www.stripytshirt.co.uk/features/firefox/smartzilla Smartzilla is a Firefox Extension] that finds hCards on web pages and lets you add them to your addressbook.
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCard and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* There is [http://flickr.com/photos/factoryjoe/68755089/ evidence of built-in hCard support in the Konqueror browser]. Specifically, Konqueror 3.5, in KDE 3.5 (kubuntu Breezy w/ update).
* There is [http://tagcamp.org/index.cgi?ContactList evidence of a kwiki plugin for hCards]. Update: the [http://svn.kwiki.org/cwest/Kwiki-hCard/ hCard kwiki plugin svn repository]. See the [http://microwiki.caseywest.com/index.cgi?hCard documentation of the hCard kwiki plugin].
* [http://suda.co.uk/projects/X2V/ X2V] is a bookmarklet that parses hCard and produces a .vcf (vCard) stream. Note: needs to be updated as the spec is refined
* [http://www.stripytshirt.co.uk Duncan Walker] has built [http://www.stripytshirt.co.uk/features/firefox/smartzilla a Firefox extension] that gets hCard data from a webpage, uses Brian Suda's XSL (locally) to transform it to vcard format and opens the resulting .vcf file.
* [http://george.hotelling.net/90percent/ George] has written a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script] that detects hCards and allows users to easily add them to their address book application. Relies on the X2V web service to do the conversion.
* [http://blogmatrix.blogmatrix.com/ David Janes] has written a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCards, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003376 provides a popup menu of actions]. The hCard to vCard conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''
* [http://diveintomark.org/ Mark Pilgrim] has also written an [http://diveintomark.org/projects/greasemonkey/hcard/ hCard parser Greasemonkey user script]. It is self-contained and does not rely on the X2V web service.
* [http://www.oliverbrown.me.uk/2005/09/03/a-working-microformats-extension-to-simplexml/ Oliver Brown] has written an "extension" to [http://www.php.net/simplexml SimpleXML] that gives simple access to hCard information in PHP 5.
* [http://thedredge.org/ Andrew D. Hume] has built a system (Wordpress plugin?) for [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hcards in your blog] to represent people leaving comments on blog posts.
* The [http://tantek.com/microformats/hcard-creator.html hCard creator] is a very simple, yet illustrative, open source user interface / form / script which creates an hCard in real-time as you type in a set of contact information.
* [http://greenbytes.de/tech/webdav/rfc2629.xslt rfc2629.xslt] now attempts to generate hCard information ([http://ietf.org/rfc/rfc2629 RFC2629] is an XML format for authoring RFCs and Internet Drafts, see [http://greenbytes.de/tech/webdav/rfc2629xslt/rfc2629xslt.html example document])
* [http://tantek.com/microformats/buddylist2hcards.html iChat buddy list to hCards] - Open source AppleScript to automatically convert one's buddy list in the MacOSX iChat AIM client into a valid XHTML 1.0 Strict list of hCards.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] is a collection of palmpilot and sidekick tools. It includes X2V derivatives xhtml2hcard.xsl and toICal.xsl plus some [http://dev.w3.org/cvsweb/2001/palmagent/hcardTest.html hcardTest] materials
* [http://www.openpsa.org/ OpenPsa 2.x] CRM application uses hCard for all person listings. The widget is [http://www.midgard-project.org/midcom-permalink-922834501b71daad856f35ec593c7a6d reusable across Midgard CMS]
* [http://www.metonymie.com Emiliano Martínez Luque] has written an experimental [http://www.metonymie.com/hCard_extract/app.html hCard finder and structured search application] that finds hCards within a given set of URLs and returns the ones that match the specified search criteria.

== Additional Applications ==
This section is '''informative'''.

There are numerous potential additional uses and applications for hCards on the Web. The following are merely a few thoughts and possibilities that folks have come up with:

* As an open standard/format for [http://www.gravatar.com/ Gravatars].
* Marking up individual authors of blog posts on a group blog
* Marking up people's names and URLs in a blogroll
* Any reference to people in blog posts (e.g. when citing them, or referencing them, or describing them, by name).
* ...

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426]

=== Informative References ===
* [http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426]
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcard hCard term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* Contributed from http://developers.technorati.com/wiki/hCard.
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Specifications That Use hCard ====
* [[adr]]
* [[geo]]
* [[hcalendar|hCalendar]]
* [[hreview|hReview]]

==== Similar Work ====
* [http://www.intertwingly.net/wiki/pie/PaceBetterPersonElement Atom PaceBetterPersonElement]
* [http://www.jabber.org/jeps/jep-0054.html JEP-0054: vcard-temp]

== Related Pages ==
* [[hcard-faq|hCard FAQ]] - If you have any questions about hCard, check here, and if you don't find answers, add your questions!
* [[hcard-parsing|hCard parsing]] - Normatively details of how to parse hCards.
* [[hcard-issues|hCard issues]] - Please add any issues with the specification to the issues page.
* [[hcard-profile|hCard profile]] - The XMDP profile for hCard

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.

* [[hcard-brainstorming|hCard Brainstorming]] - where we are keeping our brainstorms and other explorations relating to hCard
* [[hcard-tests|hCard tests]] - a wiki page with actual embedded hCards to try parsing.

== Further Reading ==
* [http://www.digital-web.com/articles/microformats_primer/ Digital Web Magazine: Microformats Primer] by Garrett Dimon has a good intro to hCard
* [http://24ways.org/advent/practical-microformats-with-hcard Practical Microformats with hCard] by Drew McLellan
* [http://thedredge.org/ Andrew D. Hume] has written a blog post on [http://usabletype.com/articles/2005/usable-microformats/ usable microformats] which discusses hCard
* [http://www.thefutureoftheweb.com/blog/2006/1/hcard Jesse Skinner's introduction to hCard]
* [http://blog.usweb.com/ Shaun Shull's] great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], including his [[hcard|hCard]] as an example.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page] and the [http://technorati.com/tags/hcard hCard tag]

hcard

2006-03-03T18:20:31Z

Raster: /* Examples in the wild */ added example

<h1>hCard</h1>

hCard is a simple, open, distributed contact information format for people, companies, and organizations, which is suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCard is a 1:1 representation of the vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) in XHTML, one of several open [[microformats|microformat]] standards.

Want to get started with writing an [[hcard|hCard]]? Use the [http://microformats.org/code/hcard/creator hCard creator] to write up some contact information and publish it.

__TOC__

== Draft Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.]

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to: my good friend [http://vadim.com/ Vadim] who introduced me to vCard ''many'' years ago, and if I'd only paid more attention then, perhaps I could have helped a lot of people avoid wasting a lot of time reinventing various standards wheels.

== Introduction ==
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]), has been broadly interoperably implemented (e.g. Apple's "Address Book" application built into MacOSX).

In addition, many bloggers identify themselves by name and discuss their friends and family. With just a tad bit of structure, bloggers can discuss people in their blog(s) in such a way that spiders and other aggregators can retrieve this information, automatically convert them to vCards, and use them in any vCard application or service.

This specification introduces the '''hCard''' format, which is a 1:1 representation of the aforementioned vCard standard, in semantic XHTML. Bloggers can both embed vCards directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCard enables applications to retrieve information about such vCards directly from web pages without having to reference a separate file.

Use the [http://microformats.org/code/hcard/creator hCard creator], copy the HTML code it generates to your blog or website to publish your contact info.

== Semantic XHTML Design Principles ==
{{semantic-xhtml-design-principles}}

== Format ==
=== In General ===
The vCard standard ([http://www.ietf.org/rfc/rfc2426.txt RFC2426]) forms the basis of hCard.

The basic format of hCard is to use vCard object/property names in lower-case for class names, and to map the nesting of vCard objects directly into nested XHTML elements.

=== More Semantic Equivalents ===
However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in vCard becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vcard"</code> in hCard.
* Similarly, <code>EMAIL</code> in vCard becomes <code><nowiki><a class="email" href="mailto:...">...</a></nowiki></code>
* <code>PHOTO</code> in vCard becomes <code><img class="photo" src="..." alt="Photo of ..." /></code>

=== Singular vs. Multivalued Properties ===

For properties which are singular (e.g. "N" and "FN"), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL"), each class instance should create a instance of that property.

==== Plural Properties Singularized ====

Since plural property names become their singular equivalents, even if the original plural property permitted only a single value with multiple components, those multiple components are represented each with their own singularly named property and the the property is effectively multivalued and subject to the above treatment of multivalued properties.

=== Human vs. Machine readable ===

If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value.

Similarly, if an <code><img></code> element is used for one or more properties, it must be treated as follows:
# For the "PHOTO" property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
# For other properties, the <code><img></code> element's '<code>alt</code>' attribute is the value of the property.

=== Value excerpting ===

Sometimes only part of an element which is the equivalent for a property should be used for the value of the property. This typically occurs when a property has a subtype, like TEL. For this purpose, the special class name "<code>value</code>" is introduced to excerpt out the subset of the element that is the value of the property. E.g. here is an hCard fragment for marking up a home phone number:

<pre><nowiki>
<span class="tel">
<span class="type">home</span>:
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

This hCard fragment could be displayed as:

home: +1.415.555.1212

=== Property Exceptions ===

vCard has several properties which either do not make sense on, or are already implied within the context of a web page. This section explains what to (not) do with them.

# '''NAME''', '''PROFILE''', '''SOURCE''', '''PRODID''', '''VERSION''' properties as defined in Sections 2.1.2, 2.1.3, 2.1.4, 3.6.3, 3.6.9 of RFC 2426. Content publishers MUST NOT use these properties in their hCards, and as such, hCard consumers/parsers MUST IGNORE these properties if they are found within an hCard. Instead. hCard to vCard converters SHOULD use the title of the page where the hCard is found (e.g. the <code><title></code> element in (X)HTML documents) to construct the NAME property, MAY output a PROFILE value of "<code>VCARD</code>" per RFC 2426, SHOULD use the URL of the page where the hCard is found to construct the SOURCE property (e.g. perhaps as a parameter to a URL/service that converts hCards to vCards), for an output vCard stream (e.g. a .vcf file). Only services/applications that output actual vCards should write the PRODID property, with the product identifier for said service/application. Similarly only such services/applications should write the VERSION property, with the value "3.0" (without quotes) per RFC2426 Section 3.6.9.

=== Organization Contact Info ===

If the "FN" and "ORG" properties have the exact same value (typically because they are set on the same element, e.g. class="fn org"), then the hCard represents contact information for a company or organization and should be treated as such. In this case the author MUST also NOT set the "N" property, or set it (and any sub-properties) explicitly to the empty string "". Thus parsers should handle the missing "N" property in this case by implying empty values for all the "N" sub-properties.

=== Implied "n" Optimization ===

Although vCard requires that the "N" property be present, the authors of the vCard specification (RFC 2426) themselves do not include "N" properties in their vCards near the end of the spec (p.38). This apparent contradiction can be resolved by simply allowing the "FN" property to imply "N" property values in typical cases provided in the spec. We do so explicitly in hCard.

If "FN" and "ORG" are not the same (see previous section), and the value of the "FN" property is exactly two words (separated by whitespace), and there is no explicit "N" property, then the "N" property is inferred from the "FN" property. For "FN"s with either one word see below, and for three or more, the author MUST explicitly markup the "N", except for the organization contact info case, [http://microformats.org/wiki/hcard#Organization_Contact_Info see above] for that.

# The content of "FN" is broken into two "words" separated by whitespace.
# The ''first'' word of the "FN" is interpreted as the "given-name" for the "N" property.
# The ''second/last'' word of the "FN" is interpreted as the "family-name" for the "N" property.
# Exception: If the first word ends in a "," comma OR if the second word is a single character (optionally followed by a period "."), then the first word (minus the comma at the end if any) is interpreted as the "family-name" and the second word is interpreted as the "given-name".

This allows simplification in the typical case of people stating:
* given-name (space) family-name
* family-name (comma) given-name
* family-name (comma) given-name-first-initial
* family-name (space) given-name-first-initial (optional period)

=== Implied "nickname" Optimization ===

Due to the prevalence of the use of nicknames/handles/usernames on the Web in actual content published on the Web (e.g. authors of [[hReview|reviews]]), hCard also has an implied "nickname" optimization to handle this.

Similar to the implied "n" optimization, if "FN" and "ORG" are not the same, and the value of the "FN" property is exactly one word, and there is no explicit "N" property, then:

# The content of the "FN" is treated as a "nickname" property value.
# Parsers should handle the missing "N" property by implying empty values for all the "N" sub-properties.

Note: the hCard may have additional explicit "nickname" property values in addition to the implied nickname.

=== Implied "organization-name" Optimization ===

The "ORG" property has two subproperties, organization-name and organization-unit. Very often authors only publish the organization-name. Thus if an "ORG" property has no "organization-name" inside it, then its entire contents MUST be treated as the "organization-name".

=== Root Class Name ===

The root class name for an hCard is "vcard".

=== Property List ===

This is the list of properties (and subproperties, in parantheses, like this) in hCard, taken from vCard:

* fn, n (family-name, given-name, additional-name, honorific-prefix, honorific-suffix), nickname, sort-string
* url, email (type, value), tel (type, value)
* adr (post-office-box, extended-address, street-address, locality, region, postal-code, country-name, type, value), label
* geo (latitude, longitude), tz
* photo, logo, sound, bday
* title, role, org (organization-name, organization-unit)
* category, note
* class, key, mailer, uid, rev
==== type subproperty values ====

The 'type' subproperty in particular takes different values depending on which property it is a subproperty of. These 'type' subproperty values are case-INSENSITIVE, meaning "Home" is the same as "home", as well as multivalued, e.g. a tel can be home and preferred:
<pre><nowiki>
<span class="tel"><span class="type">Home</span> (<span class="type">pref</span>erred):
<span class="value">+1.415.555.1212</span>
</span>
</nowiki></pre>

The following lists are ''informative''. See RFC2426 sections 3.2.1 ADR, 3.3.1 TEL, and 3.3.2 EMAIL respectively for normative type values. They are repeated here for convenience. Default type subproperty value(s) is(are) first in each list and indicated in ALL CAPS. types may be multivalued.

* adr type: INTL, POSTAL, PARCEL, WORK, dom, home, pref
* tel type: VOICE, home, msg, work, pref, fax, cell, video, pager, bbs, modem, car, isdn, pcs
* email type: INTERNET, x400, pref, "other IANA registered address types"

=== XMDP Profile ===

See [[hcard-profile]] for the [http://gmpg.org/xmdp XMDP] profile of hCard which contains the above complete list of properties, with references to their RFC 2426 definitions.

=== Parsing Details ===

See [[hcard-parsing|hCard parsing]].

== Examples ==

This section is informative.

=== Sample vCard ===

Here is a sample vCard:

<pre><nowiki>
BEGIN:VCARD
VERSION:3.0
N:Çelik;Tantek
FN:Tantek Çelik
URL:http://tantek.com
ORG:Technorati
END:VCARD
</nowiki></pre>

and an equivalent in hCard with various elements optimized appropriately. See [[hcard-example1-steps| hCard Example 1]] for the derivation.

<pre><nowiki>
<div class="vcard">
<a class="url fn" href="http://tantek.com/">Tantek Çelik</a>
<div class="org">Technorati</div>
</div>
</nowiki></pre>

This hCard might be displayed as:

[http://tantek.com/ Tantek Çelik]<br />
Technorati

Note: The version information is unnecessary in hCard markup directly since the version will be defined by the profile of hCard that is used/referred to in the 'profile' attribute of the <head> element.

=== More Examples ===

See [[hcard-examples]] for more examples, including all examples from vCard RFC 2426 converted into hCard.

== Examples in the wild ==
This section is '''informative'''.

The following sites have published hCards, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If you have an hCard on your own page, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== New Examples ===
Please add new examples to this section.

* [http://tantek.com/microformats/2006/03-01-TechPlenAgenda.html Agenda: W3C Technical Plenary Day, March 1 2006] has [[hcard|hCard]] and [[hcalendar|hCalendar]] markup. ([http://www.w3.org/2006/03/01-TechPlenAgenda.html original here]).
* [http://www.gr0w.com/articles/press/growsearch_launched_press_release/ GrowSearch Launched (Press Release)] uses an hCard to provide Press Contact Point.
* The [http://www.arborday.org/ National Arbor Day Foundation] has started using hCards for their [http://arborday.org/programs/conferences/communityforestry/index.cfm upcoming] [http://arborday.org/programs/conferences/hazardtrees-treeplanting/ conferences].
* [http://www.multipack.co.uk The Multipack] has numerous hCards, especially on the [http://www.multipack.co.uk/members/ members page], as well as the next meeting information.
* [http://deadringrancor.livejournal.com/ Justin McDowell] used an hCard when [http://deadringrancor.livejournal.com/221332.html referring to a person in his blog post]
* [http://davecardwell.co.uk/cv/ Dave Cardwell] has included his hCard in his Curriculum Vitae.
* [http://blog.usweb.com/ Shaun Shull] has written a great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], and has included his [[hcard|hCard]] as one of the examples.
* [http://www.thefutureoftheweb.com/ Jesse Skinner] has written a simple [http://www.thefutureoftheweb.com/blog/2006/1/hcard tutorial with examples]
* [http://www.w3.org/2005/12/allgroupoverview.html 2006 W3C Technical Plenary Week] has marked up the venue, contacts, and program committee members all with hCard.
* [http://www.avf-nexus.co.uk AVF-Nexus] have a hCard on their [http://www.avf-nexus.co.uk/contact/ contact page] - (by [http://creation.uk.com Creation"])
* [http://www.thefantasticos.com/andrew/ Andrew White] posted [http://www.thefantasticos.com/andrew/index.php/my-hcard/ his hCard] and [http://www.thefantasticos.com/andrew/index.php/62/microformats-the-should-have-been-obvious-web-dev-tool/ blogged about it].
* [http://www.2sheds.ru Oleg "2sheds" Kourapov] in his [http://www.2sheds.ru/blog/ blog] ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog X2V]) has turned personal profile into hCard ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/hcard.html X2V]) and his blogroll - into combination XFN/hCards ([http://suda.co.uk/projects/X2V/get-vcard.php?uri=http://www.2sheds.ru/blog/friends.html X2V])
* [http://www.approveddesign.co.uk Approved Design Consultancy] have a hCard on their [http://www.approveddesign.co.uk/about/contact/ contact page] as well as on their [http://www.approveddesign.co.uk/about/people/ people section] - (by [http://creation.uk.com Creation"])
* [http://weblog.200ok.com.au/ Ben Buchanan] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin Morris] have [http://weblog.200ok.com.au/2006/01/griffith-phonebook-adds-hcard-and.html implemented hCards and vCards] for the [http://www.griffith.edu.au Griffith University] [http://www.griffith.edu.au/find/content_phonebook.html online phone book]. Eg. [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=ben+buchanan&format=search Ben's vCard] and [http://www.griffith.edu.au/cgi-bin/phone_search.pl?string=colin+morris&format=search Colin's vCard]
* WWF-Australia [http://wwf.org.au/about/contactdetails/ contact details page]
* Pete Prodoehl included use the hCard format on his [http://rasterweb.net/raster/contact.html Contact page].

=== Examples ===
* [http://thoughtport.blogspot.com/ Aiden Kenny] hasn't published his hCard yet, but he has [http://thoughtport.blogspot.com/2005/07/elemental-particles-of-web.html published his hCard icon]: http://photos1.blogger.com/blogger/4224/444/320/AK-Hcard-icon.gif
* [http://thedredge.org Andy Hume] uses the hcard format to mark-up the names and URLs of commentors on his blog.
* [http://www.bidclix.com/ BidClix]'s [http://www.bidclix.com/AboutContact.html Contact BidClix] page has it's ''contact info'' marked up with an hCard.
* [http://suda.co.uk/ Brian Suda] has managed to embed a photo in [http://suda.co.uk/contact/ his hCard] through the [http://www.ietf.org/rfc/rfc2397.txt data uri scheme] by converting the image to BASE64 code. View the Source to see how this is accomplished. [http://suda.co.uk/projects/X2V/get-vcard.php?uri=http%3A//suda.co.uk/contact/ The X2V link] will extract the image and encode it for a vCard which will be displayed in some address book applications.
* [http://cinematreasures.org Cinema Treasures] uses hCard to markup venue information for 10,000+ movie theaters.
* [http://www.w3.org/People/Connolly/events/ Dan Connolly's index of events and talks] has hCards for many of the people he has met at those events.
* [http://doncrowley.blogspot.com/ Don Crowley] has published [http://www.crowley.nl/hcard.html his hCard] as well as a nifty hCard button: http://www.crowley.nl/images/hcard.png
* [http://loadaveragezero.com/hnav/contact.php Douglas W. Clifton] added all types of contact information
* [http://evdb.com EVDB], the Events and Venues Database, publishes all venue detail pages with embedded hCards.
* [http://www.iowamilitaryveteransband.com/members/ Iowa Military Veterans Band Contacts] - 95 hCards [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ marked up by Scott Reynen]
* [http://JackWolfgang.blogspot.com Jack L. Wolfgang II] has [http://jack.randomata.com/resume/ converted the addresses in his resume to hCards].
* [http://www.efas.fupl.asso.fr/efas/_Mathieu-Drouet_.html Mathieu Drouet] and [http://www.efas.fupl.asso.fr/efas/_Annie-Leger_.html Annie Leger] both have hCards
* [http://www.ndunn.com Neil Dunn] has published his rather [http://www.ndunn.com/2005/10/7/hCard good looking hCard]
* [http://www.oliverbrown.me.uk/ Oliver Brown] has published his hCard.
* [http://www.paradigmproductions.org/contact/ Paradigm Productions] published a vcard as a ul (marked up by [http://www.linkingarts.com/ Peter Jacobson])
* [http://www.splintered.co.uk/ Patrick H. Lauke] has marked up [http://www.splintered.co.uk/about/ his contact info with hCard].
* [http://blah Paul Schreiber has published his hCard on [http://paulschreiber.com/about/?contact his about page].
* [http://paulschreiber.com/blog/ Paul Schreiber]'s [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCards for upcoming artists, as well as an hCard for the page itself. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCards for all past artists.
* [http://www.paulmichaelsmith.com/blog/hcard.htm Paul Smith] has created an hCard page which is Human Readable, and a link to X2V passing the same hCard page to generate a vCard.
* [http://www.windley.com/archives/2005/07/hcards_trying_o.shtml Phil Windley has published] [http://phil.windley.org/hcard.html his hCard].
* [http://www.go-curiosity.com/about.htm Piercarlo Slavazza] has published an hCard.
* [http://zooibaai.nl/ Rob Mientjes] has published his hCard on [http://zooibaai.nl/about/ his about page].
* [http://rbach.priv.at/Contact Robert Bachmann] has published his hCard and [http://rbach.priv.at/Images/hcard a button].
* [http://blah Scott Reynen has published his hCard on [http://www.randomchaos.com/document.php?source=scott_reynen his profile page].
* [http://www.stackframe.com/ StackFrame, LLC] has published [http://www.stackframe.com/people/ employee] and [http://www.stackframe.com/contact/ general] contact information as hCards.
* [http://www.wolfsreign.com Steven Ametjan] has published his hCard on [http://www.wolfsreign.com/about/ his about page].
* [http://tantek.com/microformats/2005/syndicate/speakers-list.html Syndicate - Speaker List] as a set of hCards
* [http://tagcamp.org/index.cgi?ContactList TagCamp contact list]
* [http://tantek.com/log Tantek's Thoughts] includes an inline author hCard at the bottom of the page.
* [http://technorati.com/ Technorati]'s [http://www.technorati.com/about/ About page] lists their '''Media Contact'''
* [http://www.deadringerart.com/ The Brothers McDowell] have hCards at their Contact page.
* [http://twinsparc.com/ Twinsparc] put an hCard in the header and footer of all their pages.
* [http://tantek.com/microformats/2005/web2/speakers.html Web 2.0 Conference speakers page marked up with hCard]
* [http://we05.com/ Web Essentials 05] marked up all their [http://we05.com/presenters.cfm presenters with hCard].

=== Examples with some problems ===
* [http://gbraad.nl/ Gerard Braad] has published an example on his [http://gbraad.nl/site/?p=profile profile] page that is almost consistent with his original [http://gbraad.nl/files/gbraad.vcf vCard] file. Also progress is made for transforming his [http://files.gbraad.nl/foaf.rdf FoaF] file to a hCard encoded representation. (also done for my spouse:[http://spouse.gbraad.nl/site/?p=profile Yong Yuan])
** (2005-09-27) PASSED, PASSED
** WARNINGS
*** uses 'n given-name' and 'n family-name' instead of nesting the given- and family- names inside the 'n'
*** has one 'tel' value with a bunch of values stuffed in
*** probably more problems --[[User:RyanKing|RyanKing]] 17:19, 5 Jan 2006 (PST)
* [http://www.kerihenare.com/ Keri Henare] has marked up his [http://www.kerihenare.com/contact/ contact info page] with hCard.
** (2005-09-27) PASSED
** (2005-11-01) hCard completely rewritten
** WARNING - type subproperty in classname
* [http://kinrowan.net/ Cori Schlegel] [http://kinrowan.net/blog/wp/archives/2005/07/08/a-problem-with-the-structured-blogging-plug-in-for-wordpress/ discusses how he has updated] [http://kinrowan.net/blog/contact his contact page with hCard]
** INVALID - using 'prefix' instead of 'honorific-prefix' and type's in classnames (in both adr and tel) and has two photo's (the second could be 'logo') --[[User:RyanKing|RyanKing]] 15:15, 5 Jan 2006 (PST)
* The good ship [http://styrheim.com/test/leonid.html Leonid Miloslavskiy] spotted in the North Atlantic
** INVALID --[[User:RyanKing|RyanKing]] 00:50, 27 Oct 2005 (PDT)
*** class="family" should probably be family-name
*** the "n" property is missing and the "n" optimization can't be applied
*** the first geo propery is empty, the second one is invalid (ie, it doesn't contain lat/long)
* [http://landsbank.fo/#hCard Landsbanki Føroya]
** INVALID - using embedded rdf/xml invalidly
* [http://chrischerry.name/blog/contact/ Chris Cherry's contact page with his hCard]
** WARNING - uses class="cell" instead of <span class="type">cell</span>
* [http://www.bath.ac.uk/contact/ University of Bath] Person Finder results are encoded with hCards so you can easily create a vCard from any result.
** ERROR - attempt to use Implied-N optimization where that's not possible. --[[User:RyanKing|RyanKing]] 14:29, 5 Jan 2006 (PST)
** Error appears for external users only. Won't be fixed any time soon. -- [[User:PhilWilson|PhilWilson]] 00:03, 28 Jan 2006 (GMT)
* [http://richi.co.uk/blog/2005/12/structured-blogging.html Richi Jennings] has put up his attempt
** INVALID, missing FN --[[User:RyanKing|RyanKing]] 12:47, 5 Jan 2006 (PST)
* [http://www.shiftingpixel.com/about/ shifting pixel photoblog] has published an hCard.
** "organization_name" should be "organization-name" (s/_/-/), otherwise good --[[User:RyanKing|RyanKing]] 14:01, 5 Jan 2006 (PST)

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCards. If you have an hCard implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://blog.codeeg.com/tails-firefox-extension/ Tails is a Firefox Extension] that will display the presence and details of microformats ([[hcard|hCard]], [[hcalendar|hCalendar]], [[hreview|hReview]], [[xfolk|xFolk]]) on a webpage.
* [http://www.stripytshirt.co.uk/features/firefox/smartzilla Smartzilla is a Firefox Extension] that finds hCards on web pages and lets you add them to your addressbook.
* [http://placenamehere.com/TXP/pnh_mf/ pnh_mf] is a plugin for [http://textpattern.com/ Textpattern] that supports embedding hCard and other microformats in templates and blog posts. Written by [http://placenamehere.com/ Chris Casciano].
* There is [http://flickr.com/photos/factoryjoe/68755089/ evidence of built-in hCard support in the Konqueror browser]. Specifically, Konqueror 3.5, in KDE 3.5 (kubuntu Breezy w/ update).
* There is [http://tagcamp.org/index.cgi?ContactList evidence of a kwiki plugin for hCards]. Update: the [http://svn.kwiki.org/cwest/Kwiki-hCard/ hCard kwiki plugin svn repository]. See the [http://microwiki.caseywest.com/index.cgi?hCard documentation of the hCard kwiki plugin].
* [http://suda.co.uk/projects/X2V/ X2V] is a bookmarklet that parses hCard and produces a .vcf (vCard) stream. Note: needs to be updated as the spec is refined
* [http://www.stripytshirt.co.uk Duncan Walker] has built [http://www.stripytshirt.co.uk/features/firefox/smartzilla a Firefox extension] that gets hCard data from a webpage, uses Brian Suda's XSL (locally) to transform it to vcard format and opens the resulting .vcf file.
* [http://george.hotelling.net/90percent/ George] has written a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script] that detects hCards and allows users to easily add them to their address book application. Relies on the X2V web service to do the conversion.
* [http://blogmatrix.blogmatrix.com/ David Janes] has written a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCards, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003376 provides a popup menu of actions]. The hCard to vCard conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''
* [http://diveintomark.org/ Mark Pilgrim] has also written an [http://diveintomark.org/projects/greasemonkey/hcard/ hCard parser Greasemonkey user script]. It is self-contained and does not rely on the X2V web service.
* [http://www.oliverbrown.me.uk/2005/09/03/a-working-microformats-extension-to-simplexml/ Oliver Brown] has written an "extension" to [http://www.php.net/simplexml SimpleXML] that gives simple access to hCard information in PHP 5.
* [http://thedredge.org/ Andrew D. Hume] has built a system (Wordpress plugin?) for [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hcards in your blog] to represent people leaving comments on blog posts.
* The [http://tantek.com/microformats/hcard-creator.html hCard creator] is a very simple, yet illustrative, open source user interface / form / script which creates an hCard in real-time as you type in a set of contact information.
* [http://greenbytes.de/tech/webdav/rfc2629.xslt rfc2629.xslt] now attempts to generate hCard information ([http://ietf.org/rfc/rfc2629 RFC2629] is an XML format for authoring RFCs and Internet Drafts, see [http://greenbytes.de/tech/webdav/rfc2629xslt/rfc2629xslt.html example document])
* [http://tantek.com/microformats/buddylist2hcards.html iChat buddy list to hCards] - Open source AppleScript to automatically convert one's buddy list in the MacOSX iChat AIM client into a valid XHTML 1.0 Strict list of hCards.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] is a collection of palmpilot and sidekick tools. It includes X2V derivatives xhtml2hcard.xsl and toICal.xsl plus some [http://dev.w3.org/cvsweb/2001/palmagent/hcardTest.html hcardTest] materials
* [http://www.openpsa.org/ OpenPsa 2.x] CRM application uses hCard for all person listings. The widget is [http://www.midgard-project.org/midcom-permalink-922834501b71daad856f35ec593c7a6d reusable across Midgard CMS]
* [http://www.metonymie.com Emiliano Martínez Luque] has written an experimental [http://www.metonymie.com/hCard_extract/app.html hCard finder and structured search application] that finds hCards within a given set of URLs and returns the ones that match the specified search criteria.

== Additional Applications ==
This section is '''informative'''.

There are numerous potential additional uses and applications for hCards on the Web. The following are merely a few thoughts and possibilities that folks have come up with:

* As an open standard/format for [http://www.gravatar.com/ Gravatars].
* Marking up individual authors of blog posts on a group blog
* Marking up people's names and URLs in a blogroll
* Any reference to people in blog posts (e.g. when citing them, or referencing them, or describing them, by name).
* ...

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [http://www.ietf.org/rfc/rfc2426.txt vCard RFC2426]

=== Informative References ===
* [http://www.w3.org/2002/12/cal/rfc2426 HTML reformatted version of RFC2426]
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcard hCard term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* Contributed from http://developers.technorati.com/wiki/hCard.
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Specifications That Use hCard ====
* [[adr]]
* [[geo]]
* [[hcalendar|hCalendar]]
* [[hreview|hReview]]

==== Similar Work ====
* [http://www.intertwingly.net/wiki/pie/PaceBetterPersonElement Atom PaceBetterPersonElement]
* [http://www.jabber.org/jeps/jep-0054.html JEP-0054: vcard-temp]

== Related Pages ==
* [[hcard-faq|hCard FAQ]] - If you have any questions about hCard, check here, and if you don't find answers, add your questions!
* [[hcard-parsing|hCard parsing]] - Normatively details of how to parse hCards.
* [[hcard-issues|hCard issues]] - Please add any issues with the specification to the issues page.
* [[hcard-profile|hCard profile]] - The XMDP profile for hCard

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.

* [[hcard-brainstorming|hCard Brainstorming]] - where we are keeping our brainstorms and other explorations relating to hCard
* [[hcard-tests|hCard tests]] - a wiki page with actual embedded hCards to try parsing.

== Further Reading ==
* [http://www.digital-web.com/articles/microformats_primer/ Digital Web Magazine: Microformats Primer] by Garrett Dimon has a good intro to hCard
* [http://24ways.org/advent/practical-microformats-with-hcard Practical Microformats with hCard] by Drew McLellan
* [http://thedredge.org/ Andrew D. Hume] has written a blog post on [http://usabletype.com/articles/2005/usable-microformats/ usable microformats] which discusses hCard
* [http://www.thefutureoftheweb.com/blog/2006/1/hcard Jesse Skinner's introduction to hCard]
* [http://blog.usweb.com/ Shaun Shull's] great post on [http://blog.usweb.com/archives/how-microformats-affect-search-engine-optimization-seo How Microformats Affect SEO], including his [[hcard|hCard]] as an example.
* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page] and the [http://technorati.com/tags/hcard hCard tag]

hcard-brainstorming

2006-03-03T17:04:07Z

Raster: /* Examples */ added missing quotes in href

<h1> hCard Brainstorming </h1>
This page is for brainstorming about various uses and details of [[hcard|hCard]].

__TOC__

== Authors ==
* [http://suda.co.uk/ Brian Suda]
* [http://tantek.com/log/ Tantek Çelik], [http://technorati.com Technorati, Inc]

== Contributors ==
* [[User:Atamido|Atamido]]
* [[User:ChrisMessina|ChrisMessina]]
* [[User:DimitriGlazkov|DimitriGlazkov]]
* ...
* ... and many others

== Examples ==

* See [[hcard-examples]], which provides several illustrative instructive examples, as well as 1:1 hCard examples for each example in [http://www.ietf.org/rfc/rfc2426.txt RFC 2426].

=== Using RFC2806 with hCard ===

[http://www.ietf.org/rfc/rfc2806.txt RFC 2806] defines the telephone scheme "tel:", "fax:" and "modem:" to handle phone communications with URIs in the same way, "mailto:" is defined for email. It's part of the list or registered schemes by IANA : [http://www.iana.org/assignments/uri-schemes Uniform Resource Identifier (URI) SCHEMES]

<pre><nowiki>
tel telephone [RFC2806]
fax fax [RFC2806]
modem modem [RFC2806]
</nowiki></pre>

It is practical to write your tel number like this.

<pre><nowiki>
<a class="tel" href="tel:+1-919-555-7878">+1-919-555-7878</a>
</nowiki></pre>

or even

<pre><nowiki>
<a class="tel" href="tel:+1-919-555-7878">Mr Smith's phone</a>
</nowiki></pre>

You can add support for "tel:" to your desktop and to your browser

* For Gnome, edit ~/.gnome/Gnome and add something to the URL Handlers section. (Dan Connolly uses this to get galeon to launch telnum from [http://dev.w3.org/cvsweb/2001/telagent/ telagent sources] for tel URIs)
* In Mozilla, [http://dizzy.mozdev.org/ Dizzy]
* In Internet Explorer, [http://msdn.microsoft.com/workshop/networking/pluggable/overview/overview.asp Asynchronous Pluggable Protocols]

On the CSS front… You could for example add automagically an icon. I have put the property !important for those who wants to add it to their own stylesheet in their browsers, so they know type of links when browsing.

<pre><nowiki>
a[href^="tel:"]:before {
content: '\260f ' !important;
padding-left: 20px !important; }

a[href^="mailto:"]:before {
content: '\2709 ' !important;
padding-left: 20px !important; }
</nowiki></pre>

== Encoding "modern" attributes ==

Since vCard was first established, various interactive communication technologies and addressing schemes have been widely adopted. Although there aren't specific properties for these technologies / addressing schemes, they can be captured as URLs or email addresses.

This has now been written up for the most part. See:

http://microformats.org/wiki/hcard-examples#New_Types_of_Contact_Info

Still to be addressed:

* iChat mac.com addresses, simply store "@mac.com" email addresses, e.g.
** <code><a class="email" href="mailto:steve@mac.com">...</code>
* MSN Instant Messenger, you can simple store "@hotmail.com" or "@msn.com" or "@passport.com" email addresses.
* Internet Relay Chat (IRC), use "irc:" URLs.

== Encoding Company data as a Business Card (proposal) ==
In the wild there are several hCards that do not currently validate because they are businesses that have omitted the "fn" property in favor of the "org" property.

Proposal: hCards representing a business or organization MUST set fn AND org to the same value. Parsers may then use this equivalence, if detected, to treat an hCard as the contact info for a business or organization rather than an individual.

Note that [http://microformats.org/wiki/vcard-implementations#organization_vs._individual Apple Address Book supports this semantic when importing vCards].

See the [http://technorati.com/about/contact.html Technorati Contact Info] for an example.

== CSS Styles ==
Not only can you create semantics with the hCard values, but you can add CSS styles to them as well. You are free to style the terms in any way you want, but here we can list a few ideas for how to style terms.

If you want to encode hCard data, but do NOT want to display it in the HTML code, then you can hide that tag in CSS with the following code:
<pre><nowiki>
<span style="display: none">Hidden Data</span>
</nowiki></pre>
Transforming applications will still find the data and use it when converting hCards to vCards.

== Auto-Discovery ==
There is currently a debate over the best way to add an auto discovery link to your HTML to extract the vCard.

On the page with the hCard encoding, the best link would be as follows:
<code><nowiki> <link rel="alternate" type="text/vcard" href="..." /> </nowiki></code>
this HTML page is an alternate view of the vCard.

[[User:EtanWexler|EtanWexler]] disagrees with the value of the “type” attribute. The [http://www.iana.org/ Internet Assigned Numbers Authority] has no registration for a “text/vcard” type. The [http://www.iana.org/assignments/media-types/text/ registered and appropriate type] for vCard entities is “text/directory”, as defined in Internet RFC 2425, “[http://www.rfc-editor.org/rfc/rfc2425.txt A MIME Content-Type for Directory Information]”. RFC 2426, “[http://www.rfc-editor.org/rfc/rfc2425.txt vCard MIME Directory Profile]”, specifies the vCard profile for “text/directory” entities, which profile the MIME/HTTP header field “Content-Type” would indicate with a “profile” parameter whose value is “VCARD”. It is unclear whether the HTML/XHTML “type” attribute allows values with parameters. On 2004-05-23, [http://bjoern.hoehrmann.de/ Björn Höhrmann] sent to the [http://www.w3.org/2002/05/html/charter HTML Working Group] a [http://www.w3.org/mid/40ccdc4d.97400945@smtp.bjoern.hoehrmann.de request for clarification] on the issue.

When on a different page, referencing that encoded page in the href would ''not'' be an alternate view of the current page. So a different rel type must be established to decribe that relationship. The ideas vary from specific to vague. The list and categories follow:
<pre><nowiki>
rel="contactinfo"
rel="profile"
rel="author"
rel='PIM'
rel='person'
rel='about'
rel='contact'
rel='hcard'
rel='microformat'
</nowiki></pre>
Example of mixing two rel types to a single page.
rel="hcard xfn"

Note: using rel="vcard" indicates a link directly to a vCard. If the document links to an hCard instead, the indication is untrue and inappropriate.

=== Auto-Discovery for XFN ===

An author will typically their XFN information on a specific page, rather than all pages. In particular, a specific page separate from the home page of their blog, and thus it would be useful to have an explicit rel value to assist in auto-discovery of XFN information.

This was suggested by Jens Alfke on 20050606 at the WWDC blogger's dinner.

== Issues with vCard Applications ==
See [[vcard-implementations]].

== Open Questions ==

Q: since many of the components would be using CSS classes for encoding data, it is possible to MIX two different profiles. (e.g. hCard and XFN) There are no real constraints on where/how to enforce class names, these are based on the html profile, since it is difficult to associate the text within the attribute to a specific profile.

<pre><nowiki>
...
<a href="mailto:joe.smith@example.com" class="fn" rel="met">Joe Smith</a>
...
</nowiki></pre>

-- [http://suda.co.uk/ Brian Suda]

Q: Preserving White space? Should the transforming applications preserve extra white space characters? For example:
<pre><nowiki>
<a href="http://mywebsite.com/" class="fn n">
<span class="given-name">John</span>
<span class="other-names">Q.</span>
<span class="family-name">Public</span>
</a>
</nowiki></pre>

When transformed into a vCard, the N property will pick apart the span tags and create the value for N correctly seperated by colons. The FN property will take a string and simply display it. There are two possible renderings for FN:
<pre><nowiki>
John Q. Public

John
Q.
Public
</nowiki></pre>

Either the white-space is preserved or it is not. Which should the transforming applications render?

-- [http://suda.co.uk/ Brian Suda]

A: The parsing application should follow the white space collapsing rules of the mime type it retrieves. I.e. if it retrieves a "text/html" document, it should do HTML white space collapsing.

-- [http://tantek.com/log/ Tantek]

Many of the Questions and Answers are relevant to both ["hCal"] and hCard.

Q: Would it be appropriate to wrap the name of the vCard owner with <dfn/>? This may give the hCard some added semantic value in the XHTML document.
<pre><nowiki>
<span class="agent">
<span class="vcard">
<span class="email">
<a class="internet" href="mailto:jfriday@host.com">
<dfn>
<span class="fn">Joe Friday</span>
</dfn>
</a>
</span>
<span class="tel">+1-919-555-7878</span>
<span class="title">Area Administrator, Assistant</span>
</span>
</span>
</nowiki></pre>
-- [http://www.ben-ward.co.uk/ Ben Ward]

== Applications ==
Applications that are hCard aware or can convert hCard to vCard formats.

=== Copy hCards favelet(s) ===
* I think a Favelet would work nicely here. When you find a page that is hCard friendly, you click the favlet and you get yourself a vCard. This is done! See X2V in the implementations section of the [[hcard|hCard]] spec.

=== Distributed Commentor Icons ===

* See [http://thedredge.org/2005/06/using-hcards-in-your-blog/ using hCards in your blog] for an example of hCards used for comment authors (commentors). The system used there, "Gravatars", is a centralized site that serves commentor icons that requires login etc.

What if we gave each commentor the option of hosting their own icon?

A distributed commentor icon implementation could work like this:

# Given the URL of a commentor, look for an <code><address></code> element with classname of "vcard" at the commentor's URL. The <code><address></code> element is supposed to be the contact information for the page (see [[hcard-faq|hCard FAQ]] for more info), so this makes sense.
# Next, look for the first element inside that hcard that has a classname of "logo".
# Hopefully that element is an <code><img></code>, and if so, use its src to get the commentor's icon.
# Presto. You've got distributed commentor icons!

== Spam prevention ==
hCard uses <code>mailto:</code> links, and therefore
it automatically "inherits" the disadvantage of <code>mailto:</code> links:
These links can be easily detected by emails spiders (used by spammers).

There are ways to prevent email address detection by simple email spiders, while
still retaining full compatibility with (X)HTML applications.
One common way is to "encode" the the "m" of "mail" and "@" with character entities:

Example of the original link:
<pre><nowiki>
<a class="email" href="mailto:john.smith@example.com">john.smith@example.com</a>
</nowiki></pre>

Example of the "encoded" link:
<pre><nowiki>
<a class="e&#109;ail" href="&#109;ailto:john.smith&#064;example.com">john.smith&#064;example.com</a>
</nowiki></pre>

Simple email spiders which do not do character entity decoding will therefore not be able to find your email address.

''Note:'' Perhaps there are or will be email spiders which can decode entities, so the this technique will only help with some (cheap) email spiders.
(See also: http://rbach.priv.at/Misc/2005/EmailSpiderTest)

== Tutorials ==
* How to hCard encode entries in Popular blog software.
* Good reasons to publish your hCard
** as a business, get people to put you in their address book so they'll find you later
** as a business with an email list, get people to add you (with email address) to their address book so that your email list works via whitelisting via the address book.

== Parsing ==
See separate [[hcard-parsing|hCard parsing]] page.

== Post vCard additions ==

Some have found vCard to be limiting in terms of the data/properties/fields they want to express in contact information. Some implementations use vCard extensions to express such information.

This section is for documentation of such suggested additions. Note, we will require empirical evidence of actual *real world* examples on the Web of people publishing this information as part of contact information, before considering such additions/extensions.

* altitude. From [[hcard-issues]].
** No evidence provided that contact information on the Web publishes this information.

== TODO ==

* The [[hcard-profile]] needs verification and perhaps a URL for retrieving the actual XMDP, rather than as <pre> text on a wiki page.
* Complete translating the examples from the vCard spec into hCard, and place them on a separate hCard examples page.
* Create a "rich" but realistic hCard example, say for example for a salesperson, who wants to put a whole bunch of contact information on their website in order to be found/contacted easily.
* Provide examples of how to encode instant messaging (IM) accounts. Figure out what would the mailto: or aim: URL in hCard look like in vCard. And take a look at what vCard applications do today with IM addresses.

== References ==
=== Normative References ===
* [http://www.ietf.org/rfc/rfc2426.txt RFC 2426] vCard RFC
* [http://www.ietf.org/rfc/rfc2397 RFC 2397] data URI RFC
* [http://gmpg.org/xmdp/ XMDP]
=== Informative References ===
* [http://www.imc.org/pdi/ Personal Data Interchange (PDI) at the Internet Mail Consortium]
* [http://tantek.com/log/2004/07.html#d27t1049 Markup language design notes]
* [http://tantek.com/log/2002/12.html#L20021216t2238 A Touch of Class]

== Other Implementations/Ideas ==
* [http://www.w3.org/TR/2001/NOTE-vcard-rdf-20010222/ Representing vCard Objects in RDF/XML] This could allow conversion of vCard data from XHTML to RDF and from RDF to XHTML
* It would also be possible to convert XFN and hCard to FoaF and back.

== Accepted Suggestions ==
=== Implied "FN and N" Optimization (proposal) ===

Right now a parser first looks for an "n" element.

And then if no "n" is present, look for an "fn" element to use to imply an "n" element per the "implied n property" rules in the spec.

BACKGROUND:

Due to the prevalence of the use of "nicknames" or "handles" on the Web, in actual content published on the Web (e.g. authors of reviews), there has been a discussion about adding a "fn" shortcut to the "n" shortcut that used the "nickname" as a fallback.

PROPOSAL:

We should consider adding one more implied optimization after the steps documented above and that is:

If no "fn" is present either, then look for a "nickname" element to use to imply both the "fn", and the "n/given-name", leaving the "n/family-name" as empty.

This would enable "nickname" only hCards for denoting and individual on a website, which is quite common on blogs and reviews published on the Web.
* +1 [[User:Atamido|Atamido]]
* +1 [[User:ChrisMessina|ChrisMessina]] - note: multiple alternate nicknames should also be allowed
* +1 [[User:DimitriGlazkov|DimitriGlazkov]]

== Rejected Suggestions ==

Suggestion: ''The use of class="url" on an <a> tag to represent an hCard URL property is redundant. By virtue of the <a> tag you know this is a URL.''

Rejected. This is a bad suggestion because although it appears to reduce redunancy and keep things cleaner, it also creates a few problems. Without explicitly noting that this is a URL then any <a> tags within a 'vcard' would be considered a URL, for example:
<pre><nowiki>
<span class="vcard">
...
<ul class="categories">
<li><a href="http://w3c.org">W3C</a></li>
</ul>
...
</span>
</nowiki></pre>

There is no way to "turn-off" the encoding of the W3C URL, whereas if "url" needed to be explicitly listed in the class attribute list, then by NOT listing it you could effectively turn it off.