Facebook unveils social search feature

Facebook CEO Mark Zuckerberg speaks about Facebook Graph Search at a Facebook headquarters in Menlo Park, Calif., Tuesday, Jan. 15, 2013.  The new service lets users search their social connections for information about their friends' interests, and for photos and places.  (AP Photo/Jeff Chiu) Photo by THE ASSOCIATED PRESS
Facebook CEO Mark Zuckerberg speaks about Facebook Graph Search at a Facebook headquarters in Menlo Park, Calif., Tuesday, Jan. 15, 2013. The new service lets users search their social connections for information about their friends' interests, and for photos and places. (AP Photo/Jeff Chiu) Photo by THE ASSOCIATED PRESS
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