I’ve been looking at gigya socialize this week which seems to be a great tool for easily adding authentication to your site based on facebook, Twitter or openid. Seems very easy to implement and removes some of the complexity of managing all the different Apis in your own code. I’m sure services like these (api aggregator) will become more prevalent as commercial sites seek to allow their users to interact with them socially more and more. As these services reduce the technical complexity of implementing these social features the adoption curve should rise quickly. They also allow (smaller) social networks to offer more to their users – if they implement Apis on their end then their users can carry their network with them and have less reason to migrate to rival social networks.