Called "graph search," the new service lets users search their social connections for information about people, interests, photos and places. Until now, Facebook users were unable to search for friends who live in a certain town or like a particular movie. With the new feature, people can search for friends who, say, live in Boston who also like "Zero Dark Thirty".
Zuckerberg says the search feature is "privacy aware." That means users can only search for content that has been shared with them.
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