Google gives us Social Graph API
By Sam ChimesThe social graph of an individual maps how he or she is linked socially online. Previously this has been achievable, but done in a binary method which is limiting. However, a social graph is created typologically and is therefore far more detailed and in turn useful. A lengthier explanation is available from O’Reilly Radar.
Discussion on Google’s offering of Social Graph API to third parties will essentially make the reuse of personal information published on the net a far more open activity, a comcept discussed by Dare Obasanjo and the Ajax Blog.
