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

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Thursday, March 7, 2013. Zuckerberg on Thursday unveiled a new look for the social network's News Feed, the place where its 1 billion users congregate to see what's happening with their friends, family and favorite businesses. (AP Photo/Jeff Chiu)
Associated Press
Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Thursday, March 7, 2013. Zuckerberg on Thursday unveiled a new look for the social network's News Feed, the place where its 1 billion users congregate to see what's happening with their friends, family and favorite businesses. (AP Photo/Jeff Chiu)
View Comments