So far, there have been two major pillars of Facebook, the Newsfeed and Timeline, Zuckerberg told about 150 reporters at the event. Now Facebook is adding a third pillar: Graph Search.
The feature, which will appear as a bigger search bar at the top of each page, is designed offer up an answer after combing through Facebook's own massive store of user information.
Want to find a great seafood restaurant in San Francisco, for example? Graph Search will find out what restaurants your friends, and even their friends, have tried and liked.
If two people ask the same question, they're very likely to get different results because the results will be based on their individual set of friends and contacts.
Facebook has a massive collection of information about what restaurants, sneakers, appliances and bicycles its users have tried. It also has a similar amount of data on who has attended a certain college and now works at a certain company in a particular city.
http://www.computerworld.com/s/article/9235866/Facebook_s_new_Graph_Search_could_be_social_game_changer?source=toc