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

 

              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
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)