Marc Andreessen, Andreessen Horowitz
40 under 40 rank: 1
Jim Clark and James Barksdale, cofounder and CEO, respectively, of Netscape.
NEXT: Rio Caraeff, Vevo
Last updated October 22 2010: 8:09 AM ET
NEXT: Rio Caraeff, Vevo
Meet this year's class of youthful movers and shakers. They're innovating, they're expanding, and they're not really thinking about the recession. More
Which young executives at public companies brought home the most bacon this year? And exactly how much bacon are we talking about? More
They may not have made the list this year, but we're keeping an eye on these rising stars. More
