Age: 39
Title: Co-founder and former CEO; board member
The largest shareholder, with an estimated 30% to 35% stake, Williams spent two years as CEO. He's now at work on a new project.
NEXT: Biz Stone
Last updated April 14 2011: 5:14 AM ET
Title: Co-founder and former CEO; board member
The largest shareholder, with an estimated 30% to 35% stake, Williams spent two years as CEO. He's now at work on a new project.