After keeping it in beta for six months, the social networking site has finally unveiled its much-hyped new feature, which mines the data found in millions of Facebook profiles — and it could reveal more about you than you'd like.

Graph Search lets Facebook users put together seemingly unconnected bits of information about their friends, as well as friends of friends.

So if you want to know which friends from high school still live in your hometown, or which restaurants your friends in Boston "like," Graph Search can help you find out.