rel="me" is used on hyperlinks from one page about a person to other pages about that same person.
<a href="http://twitter.com/t" rel="me">@t</a>
And his Twitter profile itself has (markup simplified)
<a href="http://tantek.com/" rel="me">http://tantek.com/</a>
Thus establishing a bi-directional rel-me link and confirming that the two URLs represent the same person.
Publishers can use the XFN creator form to create rel-me hyperlinks.
screencast and videos
Watch some short videos:
- David Recordon's excellent *30 second* explanation of XFN rel="me".
- Brad Fitzpatrick explains rel="me" and more XFN.
- Joseph Smarr's whiteboard explanation of rel="me" as implemented in the Plaxo online identity aggregator.
- Gavin Bell on "What is your provenance?" (40 minutes) - provides a much broader discussion of the problem statement of who is a person on the Web, and starting at about 0:07:30 explains how hCard 1.0 + rel="me" helps solve this problem.
A simple data portability project or is it rel=me summary by Bob Ngu