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Revision as of 12:28, 7 March 2007



A lot can be done to help advocate the use of microformats. Often, simply by taking an existing site, and adding the suggested microformatting to a few of its pages as examples is all that is necessary to help the developers of the site add the microformats to the site itself. Applications, such as browsers, could also use some guidance on how to best support microformats.

Sometimes advocacy requires comparison and analysis of alternative technologies or approaches. As Mike Schinkel pointed out, we need good answers to comments like "No, we're going to use XXX instead...".

The goal for this page is to include pointers for how to advocate microformats on new sites and on existing sites that are considering or using alternative approaches, as well as applications that can benefit from supporting microformats.

For general resources for marketing microformats, see spread-microformats.

Adding Microformats to Existing Sites

Add sites here that you think would benefit from the addition of microformats. For now they are grouped by the microformat which would primarily benefit the site. Feel free to take a look at some of the sites on this list, document sample pages to be microformatted, add microformats to them, and then add the before/after of the key sections of mark-up to another wiki page for that site.


Adding hCard to these sites would make them quite handy for their users and for being indexed:

Online Profiles

Nearly every website that has a login has a page representing the public profile of the user that other users can see and interact with. Many such sites already support hCard (e.g.,,, Here are some that I think would benefit from the addition of hCard to their profile / user pages. Feel free to add more such sites that have a social network profile-like component and I'll see what I can do. Tantek 17:44, 13 Dec 2006 (PST)

Online Venues

There are many sites that offer pages that represent organizations and venues that could benefit from being marked up with hCard. Yahoo Local venues are marked up with hCards for example. Here are some more sites that have venues that would benefit from hCard markup.

Wikpedia hCard

Telephone Directory Listings

Telephone Directory Listings could usefully apply hCard to their results pages. Andy Mabbett 03:10, 13 Nov 2006 (PST)

e.g. (please add other examples!):

Postal (ZIP) code Finders

Postal code Finders could usefully apply hCard to their results pages. Andy Mabbett 12:09, 13 Nov 2006 (PST)

e.g. (please add other examples!):

Government hCard

UK Gov. hCard
Europe Gov. hCard

Organization Contacts

Many companies and organizations have about or contact pages that could benefit from being marked up with hCard. Technorati's contact page for example is both marked up with hCard and has a convenient "Add to Address Book" hCard to vCard converter link. The following company sites could benefit from similar markup (and, until user agents support hCards natively, "Add to Address Book" links). Tantek 17:44, 13 Dec 2006 (PST)

Other hCard


hCalendar could be used on these sites:

W3C track at WWW2006

Television listings

e.g. (please add other examples!):

Government hCalendar

UK Gov. hCalendar

Sports Fixtures

e.g. (please add other examples!):

Concert/ Theatre Listings

e.g. (please add other examples!):

iCal Share


hReview could be used on these sites:

Government hReview

UK Gov. hReview

Other hReview


hAtom could be used on these sites:

Government hAtom

UK Gov. hAtom

Other hAtom


Adding "Geo" markup to these sites would make them even more useful:


Google as rel-tag namespace

A Google search for 'sparrow' resolves to, if not the unwieldy - likewise for ' "black redstart" '. If Google can be persuaded to also accept, say, and as being equivalent (and assuming that the latter term searches for ' "black redstart" ', with the quote marks), then Google would become a namespace for rel-tag. Andy Mabbett 00:15, 29 Nov 2006 (PST)



IT News sites

There is obviously a great deal of publicity to be gained, by having microformats used on sites about IT developments, which are likely to be read by people in a position to have microformats used, and microformat tools implemented, in their organisations. Please add to this list!

Other high-profile IT sites

Science + Technology

Adding Microformats to Applications

User-agents (browsers, etc.) should support microformats natively. For instance, a user should not need to use a third party application or web service to add address details or events from a microformat-using web page to their address book or calendar programme.


In addition to the following, third-party developers should be encouraged to make their relevant browser add-ons microforamt aware; or to create new add-ons with microformat capabilities.


Firefox developments



Publishing Platforms





Semantic MediaWiki=

Adding Microformats to Web Services






hCard Successes

hCalendar Successes

hReview successes

Geo Successes

Comparisons With Alternative Approaches


Brian Suda

The other great thing about exposing your data as microformats, is that the data becomes Open Data. Will the general public have access to the CalDAV? (probably not) and even if they did, it will probably only serve-up .ics files... what if i don't want ICS? i need to then hack that around to get it into the format that i want... if the data were in the HTML to begin with, then i could EASILY convert that to any format i wanted. Also, sites like will happily take in hCalendar data and aggregate it, make your data more valuable and easily slurped up by other providers - i don't see that happening as easily with a CalDAV.

Kevin Marks

With respect to CalDAV: I spoke to the CalDAV chaps at Apple about this, they have hCalendar support as a ticket in their db:

See Also

advocacy was last modified: Wednesday, December 31st, 1969