Dennis Crowley: I realized I probably just saw the world differently than the people who said the stuff I was excited about wouldn't work." If you're passionate about an idea, "find a way to build it so you can prove to yourself that it doesn't work.
Jun 11, 2012 | 12:00 PM Written By: Christina
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Dennis Crowley is an American Internet entrepreneur best known for co-founding the popular social networking sites Dodgeball and Foursquare.