Mark Zuckerberg

The Associated Press

MENLO PARK, Calif. — If you've ever wanted to know the most popular TV shows among your Facebook friends who are doctors, or wanted to see all the photos any of your friends have taken in Paris, the world's biggest online social network has the answer.

CEO Mark Zuckerberg unveiled a new search feature on Tuesday in Facebook's first staged event at its Menlo Park, Calif., headquarters since its May initial public offering.