Richard Hamel, 47

NuNomad.com and dotorgwebworks.org
Web Site Designer
Global
Founded: December 2006
2007 Revenue: "very low"

For the past eight years, Richard Hamel has built Web sites for nonprofits and charities while working in 20 different countries—from Jordan to Nepal. Hamel logs 10- to 15-hour workweeks.

"Sometimes my office is within a more fixed-base location, as in my Koh Lanta, Thailand, bungalow," he says. "Or it might be as casual as tapping away in a hammock between a couple of palm trees."