Google Code Blog: URLs are People, Too
This is great news! Brad Fitzpatrick and Kevin Marks have built a new Google API that will spider XFN links.
Digital Web Magazine - Portable Social Networks, The Building Blocks Of A Social Web
Ben has written a superb article outlining the hows and whys of distributed social networks with hCard and XFN, finishing with an inspiring call to arms.
Related links
Six Apart - News and Events: We Are Opening the Social Graph
Six Apart are getting ready to make portable social networks a reality. Watch this space for code.
The Man in Blue > There are no social networks
Cameron's plea for social network transparency and portability is one of the most lucid and succinct yet.
Open Social Graph @ Plaxo
Try Plaxo's identity consolidator for yourself. Give it a URL that includes rel="me".
Plaxo to ship online identity aggregator based on microformats | ScobleShow: Videoblog about geeks, technology, and developers
The guys at Plaxo have not only implemented social network portability, they're sharing the code.