Sheryl Sandberg, COO, Facebook
Other than founder Mark Zuckerberg, Sandberg is perhaps the most public face of the leading social networking site. Since 2008 she has led the now public company's sales, marketing, business development, legal, HR, public policy and corporate communication teams. She's had a colorful past too: Prior to joining Facebook, she served as global online sales and operations vice president at Google, as chief of staff for the U.S. Department of the Treasury and as an economist at the World Bank. How does she manage it all? According to CNN, she promptly leaves work at 5:30 p.m. daily.
Sheryl Sandberg’s Facbeook page: http://www.facebook.com/sheryl