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Forbes: Most Powerful Women

6 of 12

6. Sheryl Sandberg, COO, Facebook, U.S.

Facebook's COO incited a new conversation on feminism in the workplace with her March 2013 book, "Lean In: Women, Work and the Will to Lead." The manifesto sold nearly 150,000 copies in its first week and has held the top non-fiction spot on bestseller lists since. But Sandberg's biggest success of the year may have happened right in Menlo Park. After adding ads to its mobile news feed, Facebook earned more U.S. mobile revenue than any other publisher in 2012, with an 18.4% share of the entire market. The April release of "Home," the new Facebook phone, will reportedly allow companies to send advertising directly to users' smartphones even if the home screen is locked. 2013 SPOTLIGHT: One year after Facebook's initial public offering, the company's stock is down roughly 30%.

( Matt McClain for The Washington Post via Getty Images)

More From Forbes:
See More of The World’s Most Powerful Women
The Youngest Power Women
The World's Most Powerful Couples



The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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