The Facebook Chat Node.js SDK by Vincent Maliko was created with Angular, PhoneGap, Node.js, Socket.io, and OnsenUI. The instructions to run the app include installation, revision, cloning, and building.
As anyone with multiple social networking accounts can attest to, keeping track of them all can be time consuming. AIM Lifestream is a service from AOL that aggregates a number of social networking sites, and now Lifestream has been integrated into AOL Instant Messenger.
Magnify.net, a web service that allows individuals and companies to build and curate their own video channels and communities, has announced an API to enable developers to pull videos and data from their Magnify.net channels and integrate them into their own applications (details at our Magnify.net API Profile).
ThinkUp -- the free, open source web application that captures your posts, tweets and other data on social networks like Twitter and Facebook -- has added support for Google Plus. Thanks to the the newly-released Google Plus API, ThinkUp now lets you download all of your social data from the major social networks.