Facebook announces "graph search" feature

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013. Zuckerberg introduced Graph Search, a new service that lets users search their social connections for information about their friends interests, and for photos and places.

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

From left to right, Facebook Director of Product Management Tom Stocky, Engineer Lars Rasmussen and Chief Executive Mark Zuckerberg introduce Facebook Graph Search features during a presentation Jan. 15, 2013, in Menlo Park, Calif.

Facebook CEO Mark Zuckerberg, right, speaks with Director of Product Management Tom Stocky, second from left, and Director of Engineering Lars Rasmussen at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook CEO Mark Zuckerberg answers questions after speaking at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook communications manager Malorie Lucich, right, gives a demonstration of Facebook Graph Search at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook CEO Mark Zuckerberg speaks about Facebook Graph Search at a Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook CEO Mark Zuckerberg, second from right, speaks with Director of Engineering Lars Rasmussen at Facebook headquarters in Menlo Park, Calif., Jan. 15, 2013.

Facebook Chairman and Chief Executive Mark Zuckerberg is surrounded by members of the media after announcing Graph Search feature, Jan. 15, 2013, in Menlo Park.