"Rose is listening to his gut, he says. Digg arose out of his everyday life, just as Facebook and YouTube and Xfire did for their founders. During the boom, MBAs dreamed up stuff they thought could nab money. Today, the geeks insist they're looking at ways technology can fill the gaps in their own lives. Then they build those services and share them with their friends. Once something works, they start to dribble it out to the world. But nothing too fancy that needs money to get started."

