I blogged on Friday about Social Network Consolidation and Google's Social Graph API. I feel that social network aggregation is going to be one of the big themes in 2008 and today Yahoo! threw it's hat into the ring with Marco Boerries' demo of it's oneConnect system at the Mobile World Congress in Barcelona. oneConnect is an address book system that pulls together information from social networking sites, email, instant messenger service and even GPS data to build a rich picture of what your friends are up to. oneConnect is build on the Yahoo! Mobile Developer Platform so it should work on most cell phones. They even did a demo on an iPhone showing integration with its native address book. It sounds like cool stuff and a great tool for stalking your friends.

IDG writer Peter Sayer has a more in-depth description of the demo in his article Yahoo Shows Off oneConnect Social Address Book on the New York Times site.