WOMEN
02/28/2013 12:22 pm ET

The World's 20 Most Powerful Women In Business

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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