Expanding the Facebook experience to what he called its "third pillar," CEO Mark Zuckerberg today announced a friend-optimized new product it calls Graph Search. At a much anticipated event at the social network's new headquarters kept under Apple-style wraps, Zuckerberg said Graph Search, which is still in beta, helps users in "indexing" — essentially, it's a search tool that can help you gain immediate access to and "answers" from things people have shared with you. It's a new way to search for information using Facebook, on Facebook.
Zuckerberg said the key difference between Graph Search and normal web search engines (you know, Google) is that the new service is "designed to show you the answer and not links to answers" — mostly because it can use photos you've actually liked in your life rather than vague terms in an image search about someone else's. For example, say you want to find pictures of friends from a certain event, or discover which movies your friends like; that's when you would use Graph Search. It's even useful for meeting new people with friend of friend searches. The advanced Facebook search algorithm ranks results based on those people you care about most, those photos with the most engagement (like likes and comments), and places that get the most "likes," with the aim being, you know, results you actually want to see.