Facebook recently bought friendfeed, a social networking site where one can create a news feed out of their friend's updates from Facebook, Google and Twitter.
They also recently added a search function to the site that allows a reader to search for specific information, like news updates, through the web and their own friends.
An idea scurrying around is that Facebook might just be trying to step their A-game up in the social networking world, even finding its way up to the popularity that Twitter flocks with.
Another implied thought is that Facebook is trying to beat its way into a future search engine or none-the-less, become a Google clone of some kind, like a kid admiring a hero so much he would dress up like him to a comparable extent.