46 of 50
46. Lauren Zalaznick
President, NBC Universal Women and Lifestyle Entertainment Networks
2009 rank: 48
Age: 47

This tastemaker spins gold out of reality TV, from the Housewives franchise to Top Chef. Her Bravo and Oxygen networks continue to climb in the ratings and deliver big profits.

NEXT: Amy Pascal
Last updated September 30 2010: 2:47 PM ET
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