Mark Zuckerberg,
San Francisco, CA
Mark Zuckerberg, chief executive officer and founder of Facebook Inc., waits backstage before speaking during TechCrunch Disrupt SF 2012 in San Francisco, California, U.S., on Tuesday, Sept. 11, 2012. Zuckerberg, addressing the company’s stock slump for the first time since a May initial public offering, said growth in the coming years will hinge on its ability to succeed with mobile products.