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Mike Maples, 40
Mike Maples, 40
Maples Investments

One of a new breed of true early-stage investors, Maples likes to say $500,000 is the new $5 million. His signature investments so far include Twitter, Digg and Kongregate.

NEXT: Josh Kopelman, 37
Last updated July 19 2008: 2:17 PM ET
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