Dennis Crowley Quotes
I keep a notebook in my pocket, and I write down all the stuff we could ever do with Foursquare.
Citations
Chafkin, Max. "The Way I Work: Dennis Crowley, Foursquare." Inc., Mansueto Ventures, 1 June 2010.
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Dennis Crowley is an American Internet entrepreneur who co-founded the social networking sites Dodgeball and Foursquare.