6. Sheryl Sandberg

Sheryl Kara Sandberg is an American technology executive, activist, and author. As of 2013, she is the chief operating officer of Facebook. After graduating from business school in the spring of 1995, Sandberg worked as a management consultant for McKinsey & Company for approximately one year. Sandberg, served as Chief of Staff to the United States Secretary of the Treasury Larry Summers under President Bill Clinton, where she helped lead the Treasury's work on forgiving debt in the developing world during the Asian financial crisis.

She joined Google Inc. in 2001, serving as its Vice President of Global Online Sales and Operations from 2001 to 2008. She was responsible for online sales of Google's advertising and publishing products as well as for sales operations of Google's consumer products and Google Book Search

7. Jeff Weiner

In 1994, just two years out of college, Weiner joined Warner Bros. He caught the attention of higher-ups when he wrote a report calling for Warner Bros. to boost its online presence. "I was just a little fisher, a nobody," he told Forbes.

 He eventually became the vice president of Warner Bros.' online presence, as it still says at the bottom of his LinkedIn profile today.