Sheryl Sandberg, Chief Operating Officer
Sheryl Sandberg, Chief Operating Officer
COO, Facebook

Sandberg, 42, deserves credit for turning founder and CEO Mark Zuckerberg's brilliant idea into a revenue-generating business. She's also über-connected, hosting group dinners at her home featuring Rupert Murdoch, Meg Whitman, and Valerie Jarrett. Any company would be lucky to nab her -- and her Rolodex.

Last updated August 22 2011: 5:32 AM ET
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