On a related announcement, Zuckerberg said those automated notifications will grow in scope, so that people can share what music they're listening to, what movies or TV shows they're watching and what news articles they're reading.

Through an upgrade to the application development platform, Facebook is making it possible for companies like Netflix, Hulu, Spotify and Yahoo to more tightly integrate their online services and content with the social networking site.

In various ways, Facebook members will be able to notify their friends automatically about activities on those four and dozens of other media sites, and their friends will be able to call up the songs, TV shows and other content right from within the Facebook interface.

The CEOs of Netflix and Spotify both took the stage and said that the Facebook integration will help their companies increase usage of their respective services, as well as benefit the content makers -- movie producers, recording artists and the like.

The platform upgrade will also allow for a more satisfying social gaming experience, in which sharing and interaction is smoother and reduces interruptions from automated prompts, according to Facebook.