The need for portable social networks hits the mainstream press: Professor Michael Geist writes an article for the BBC website.
TIm Berners-Lee explains what the "graph" part of "social graph" means. I'm still not keen on the term but I really love the idea (although I also disagree about the building blocks required today).
A new site to track the building blocks of portable social networks: OpenID, OAuth, hCard, XFN and more.
Six Apart are getting ready to make portable social networks a reality. Watch this space for code.
Cameron's plea for social network transparency and portability is one of the most lucid and succinct yet.
Try Plaxo's identity consolidator for yourself. Give it a URL that includes rel="me".