Forbes Unveils List of Richest Americans
FarmVille maker and Zynga CEO Mark Pincus is worth $1 billion
Forbes 400: The Richest People in America
Gates, Buffett and The Giving Pledge -- what that fortune could accomplish
List of billionaires drops 30%
The gospel of celebrity wealth: Don't leave it to the kids
Forbes Top 400, aka "The Billionaire Shuffle"
PETA's "I'd rather go naked than wear fur" inspires other campaigns