AOL has announced that it is going to support Google's Open Social project. You can read Eric Staat, the software engineer of AOL, here:
http://opensocialapis.blogspot.com/
It's interesting to see a former walled garden like AOL opening up so people can develop its services. Everyone is linking up and sharing. But from another perspective, how will people maintain their brand identity in this environment? I suppose AOL figures it will extend further if it lets developers develop their own applications based on AOL services.