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43. Nancy Peretsman
Nancy Peretsman
Managing Director
Allen & Co.
Previous rank: Return
Age: 54

This media dealmaker is swinging big in a rough market. Peretsman posted her best year ever, facilitating the estimated $20 billion merger of Vivendi's videogame division with Activision, helping the Getty family sell Getty Images, working with Oxygen Media on its sale to NBC, and aiding News Corp. in its purchase of Dow Jones.

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Last updated October 16 2008: 10:16 AM ET
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