The World's 20 Most Powerful Women In Business

The World's 20 Most Powerful Women In Business
FILE- In this Friday, Jan. 28, 2011, file photo, Sheryl Sandberg, Chief Operating Officer of the social network service Facebook, speaks during a panel session at the 41st annual meeting of the World Economic Forum, WEF, in Davos, Switzerland. Facebook announced Monday, June 25, 2012, it has named its No. 2 executive, Chief Operating Officer Sheryl Sandberg, to its board of directors. Sandberg, who joined Facebook from Google in 2008, is the first woman on Facebook's board of directors. (AP Photo/Keystone, Laurent Gillieron, File)
FILE- In this Friday, Jan. 28, 2011, file photo, Sheryl Sandberg, Chief Operating Officer of the social network service Facebook, speaks during a panel session at the 41st annual meeting of the World Economic Forum, WEF, in Davos, Switzerland. Facebook announced Monday, June 25, 2012, it has named its No. 2 executive, Chief Operating Officer Sheryl Sandberg, to its board of directors. Sandberg, who joined Facebook from Google in 2008, is the first woman on Facebook's board of directors. (AP Photo/Keystone, Laurent Gillieron, File)

It's been a groundbreaking year for women in business. IBM appointed its first female CEO in Ginni Rometty. Sheryl Sandberg led Facebook through a much-anticipated IPO. Irene Rosenfeld is busy splitting Kraft into two public companies, and Marissa Mayer jumped from a top Google exec to the CEO seat at Yahoo. See who made the top 20 and where they fall on the rankings.

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