hCard advocacy

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Part of the larger microformats advocacy effort. Adding hCard to these sites would improve their usability and ambient findability.

Online Profiles

Sites to check

The following sites may have hCard or XFN support and need to be checked and placed into lists on hcard-supporting-user-profiles and hcard-xfn-supporting-friends-lists as well. Feel free to add icons/logos for each of these as well.

User 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. ClaimID.com, Flickr.com, Technorati.com). Here are some that I think would benefit from the addition of hCard to their profile / user pages, making them hcard-supporting-user-profiles.

Feel free to add more such sites (please keep alphabetically sorted!) that have a social network profile-like component and we'll see what we can do, as well as add icons/logos for each of these as well.

appear to be offline

XFN rel me

These sites have a field for the user to enter a URL to their home page or blog, and thus should support rel-me in addition to class="url" on those links inside the user's hCard profile.

hCard XFN friends lists

In addition, if sites with people profiles have friends lists, we should encourage them to add support for hcard-xfn-supporting-friends-lists. Both of these help social-network-portability and help the site become a node on the open-social-web. Feel free to add icons/logos for each of these as well.

appear to be offline

Company Profiles

Online Address Books

  • ...

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.

  • http://opentable.com - a site for making restaurant reservations
    • hCard for restaurants
    • hCalendar for free busy times at restaurants
    • hCalendar for your reservations
    • Tantek has emailed a friend who is a former employee of OpenTable with the above three requests, in the hopes she can pass on the message. In addition, Ryan King may know someone in marketing there. Tantek 16:57, 30 Sep 2007 (PDT)
  • WikiOutdoors
  • Motorway Services Info (UK)
    • hCard (& Geo) and hReviewRequested by e-mail, 2007-09-21 Andy Mabbett

Plugins for and modifications of web-applications

Many web-applications use plugin-systems to change their behavior and content. Most notable is probably web-forums and blogs. Many of these have a community of coders that develop plugins or code to modify the default behavior of these web-applications. Here are some sites where it might be interesting to develop hcard-related plugins/mods.

WYSIWYG buttons

In addition to getting them to markup obvious references to users/usernames with hCard, it would be great to see them update their WYSIWYG authoring interfaces (little creator/style buttons that often line up just above the top of a blog post editing textarea for creating links, lists etc.) to add a "person" button (perhaps with an icon user.gif) which simply inserts hCard markup for you, or better yet, lets you pick someone from your address book, and then inserts an inline hCard with their name, URL (and perhaps even your XFN relationship to them) for you. While they're at it, perhaps a similar button/feature for easily inserting an hCalendar event.


Telephone Directory Listings

Telephone Directory Listings could usefully apply hCard to their results pages, 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


http://maplight.org/ can use a bunch of hCard markup, e.g.

Requested by Tantek 12:13, 30 May 2007 (PDT) in person at the NetSquared2007 conference.

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)

Individual hCards

Getting these sites to at least add hCard to their home page or contact info page would be an excellent start with getting them some experience with microformats and thinking about adding microformats to other places in their sites that make sense:

Trade directories

Store locators

(see Google search for "store locator"; "about 2,000,000" results!)

people search

    • primarily could use hCard on the search results (this is a search engine for people after all)
    • rel-tag namespace possibly
    • VoteLinks
    • Requested, 2007-09-13 David Mead

Other hCard


Perhaps we can consider moving successes to a separate page, like hcard-advocacy-successes. Tantek

in 2012

  • Foursquare - a location based checkin site
    • 2009-272 Tantek requested and sent sample marked up HTML code from their site to their lead dev HarryH
    • 2012-200 verified that venues have hCards and HarryH confirmed that "they've been there for quite some time now."



in 2010


  • http://brightkite.com
    • 2010-05-16 requested their front-end developer to support hCards for user profiles and venues - Tantek
    • 2010-06-09 front-end developer noted that they support hCard for profiles but have problems with vCard conversion - Tantek
    • 2010-06-11 followed up and gave advice to fix their hCard (and rel-me) support on user profiles - Tantek 16:31, 10 June 2010 (UTC)
    • 2010-06-11 followed up and gave advice for minor fixex to their hCard support on venues - Tantek 16:32, 10 June 2010 (UTC)
    • 2010-06-17 success on both! Tantek 05:25, 13 July 2010 (UTC)


As requested in the Basecamp Customer Forum (was at http://forum.37signals.com/basecamp/forums/3/topics/9091), "It would be really nice (and stupid easy!) to add microformats to Basecamp, such as hCard on the ‘People’ page. ... constantly looking up phone numbers there, it would be nice to have the option to export into ... address book. ... they could also go in the ‘Who’s talking about this message?’ column too!."

Tweets in support: energy0m

in 2009

  • 2009-05
    • Yelp.com added hCard to all venues.

in 2008

  • ...

in 2007

Wikpedia hCard

Some microformat data is now (2007-09-14) being removed from Wikipedia; see, for example List_of_Gaudi_Buildings

in 2006

See also

The hCard 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.