How you search Facebook is about to change.  Yesterday, Facebook introduced a new product called "Graph Search."  It turns some of the personal information people have shared on Facebook into a powerful searchable database.  For the social network's 170 million users in the U.S., it's sure change the way people interact with their Facebook friends.

Until now, the search bar you saw when you logged in to your Facebook page wasn't very powerful.  You could only search for Timelines – your friends' pages, other peoples' public pages and business or product pages.  But now, after close to a year and a half of development, the new "Graph Search" will allow you to search and discover more about your friends and other information that's been put on the world's largest social site.

The new tool, available only to a limited number of users to start, turns key information that nearly a billion people have shared on the site -- including photos, places, and things they "like" -- into a searchable database tailored to your individual social network.  The new tool allows you to search across your friends' Timelines, without having to go to each of their Timeline pages to find out if they like a specific place or thing.  The tool can search your friends' publicly shared interests, photos, places and connections.

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