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Mark Zuckerberg: David Ramos—Getty Images
  • Age
    30
  • Title
    Founder and CEO
  • Company
    Facebook

The social media giant isn’t adding users as fast as it used to, but it’s finally minting money from them. Revenue and profits keep trouncing estimates—and the company proved its critics wrong when it comes to mobile monetization: in the second quarter this year, mobile advertising accounted for almost two-thirds of ad revenue, while the number of users checking in on mobile devices grew to 650 million. Months after the company’s $19 billion purchase of mobile messaging app WhatsApp, Facebook acquired Finnish startup Pryte, which makes it easier for people in developing countries to purchase Internet access for mobile apps. Zuck has been active on the philanthropic front, too: Last December, he and wife Priscilla donated 18 million Facebook shares to the Silicon Valley Community Foundation, an amount valued at almost $1 billion and recognized as the largest charitable gift on public record for the year.

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