Technology | Pinterest Pinterest's New Member: Mark Zuckerberg Facebook CEO checks out the surging upstart By John Johnson Posted Feb 15, 2012 2:17 PM CST Copied In this July 6, 2011, file photo, Facebook CEO Mark Zuckerberg smiles during an announcement at Facebook headquarters in Palo Alto, Calif. (AP Photo/Paul Sakuma, File) The new social networking darling Pinterest has been getting all kinds of attention of late, and now comes a sure sign of validation: Mark Zuckerberg has signed up with a profile of his own, reports All Facebook. It notes that Zuckerberg also has accounts on Twitter and Google Plus, but he's relatively inactive on those. If his Pinterest activity starts humming, it may be a good sign for the site. "The simple content sharing site can easily be called the hottest startup of 2012," adds Stan Schroeder at Mashable. Read These Next The Air Force has changed its tune on Ashli Babbitt. Minneapolis shooter had a plan—and grievances. Open that wallet big time for a trip to Disney, if you can afford it. A 'tense' clash with RFK Jr. led to CDC chief's trouble. Report an error