iLike, Facebook's favorite music service, has officially launched their new API. TechCrunch reports that iLike is partnering with Google, TypePad, Flixster, Connected Weddings, and others, in the launch. The music itself is provided by Rhapsody.
You can see example iLike API integrations created by iLike, Mike Arrington and CNET's Caroline McCarthy to get a sense of how the playlists function. And as Caroline notes, there's a social element to the lists:
There's an interesting twist to iLike's platform: it's specifically focused on making iLike playlists available and openly collaborative... the forthcoming Connected Weddings application on Facebook, for example, will let wedding guests add to a suggested song playlist
To get started, visit the iLike Developer Signup page to register for an iLike developer account.