6. Larry Page
bpoy larry page

Co-founder and CEO, Google

Since taking over as CEO of Google (GOOG, Fortune 500) in April 2011, Page has energized the company's rank and file, restructured management to give top lieutenants more responsibility and accountability, and shed dozens of non-essential products. Search and ads remain Google's bread and butter, but Page is also investing heavily in Android, Chrome, YouTube, and Google+. After rising to an all-time high in October, Google shares slid more than 10%. It's not hard to see why investors are somewhat skittish. Google's biggest rivals, Amazon and Apple, appear to be as strong as ever, and no one is yet counting out the challenge that Google could face from a down-but-not-out Facebook. --Miguel Helft

- Last updated November 30 2012 05:12 PM ET
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Amazon's Jeff Bezos: The ultimate disrupter

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