Doing so will port the likes and interests they have listed on their Facebook profiles to MySpace, where they will get a stream of entertainment content based on these interests.
MySpace users have already been able to sync their status updates to their Facebook profiles. Thursday's announcement is a deeper integration of Facebook's technology into MySpace. It doesn't involve any financial transactions.
Once a mighty rival, MySpace has conceded that it is no longer a social network but a social entertainment destination - think MTV for the Web 2.0 generation. Facebook, meanwhile, is working to become the social overlay of the Web.