Title: CEO, Gilt Groupe
This former Martha Stewart Living Omnimedia chief joined Gilt in September 2009. Now, Gilt is one of the most successful startups on the Internet, selling luxury goods in "flash sales."
So what's Susan Lyne's next challenge? As a member of the newly formed AOL board, she'll try to help the lagging web pioneer get back on track after its spin-off from Time Warner.
NEXT: Meg Whitman