Two well know libertarians, T.J. Rodgers and John Mackey, who participated in a famous debate about the social responsibility of businees with none other than Milton Friedman, run two of the hottest "green" companies--SunPower Corporation and Whole Foods, respectively. SunPower Corporation is a member of the Wired 40, where it is lauded for its "photovoltaic silicon [that] puts out 50 percent more juice per square inch." Whole Foods, of course, is the most successful chain of supermarkets offering "natural and organic"food.