America's Best Young Entrepreneurs 2008

Meet tomorrow's moguls today. For this year's roundup of 25-and-unders, we had a record crop of nominations. Here are a few finalists

Richard Ludlow, 22, turned down a job offer from McKinsey and deferred admission to Harvard Business School to start New York's Academic Earth, an online hub for videos of university lectures and other educational content. Backed by angel funding, he aims both to earn a profit and to improve society—by making academic material widely available online so as to lower the cost of education around the world.

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