The Null Device
Something I didn't know until today: the Facebook API includes a complete SQL-style query language for querying one's social graph, which allows you to do things like:
SELECT name, pic, status, music FROM user WHERE uid in (select uid2 from friend where uid1 = 1234567890)FQL, as it's called, can be called from the Facebook API, or you can play with it here (using the fql.query method).
Facebook and Google anounce that they are joining the Data Portability Workgroup, a body advocating open standards allowing users of social web sites to easily move their data from one site to another. (This is not long after Facebook suspended Robert Scoble's account for attempting to, well, port his data from their site.) More interesting is who's Google's representative in this organisation: none other than Brad Fitzpatrick, founder of LiveJournal and one of the originators of OpenID, who more recently has turned his attention to the social graph problem.