Dennis Crowley, Co-Founder Foursquare at LeWeb 2010
Dennis Crowley is an American internet entrepreneur best known for co-founding the popular social networking sites Dodgeball and Foursquare. Crowley gained a BA from Syracuse University's S.I. Newhouse School of Public Communications. Crowley co-founded Dodgeball with fellow student Alex Rainert in 2000 while attending New York University. Dodgeball was subsequently acquired by Google in 2005, after which Crowley developed a second version of the original Dodgeball service called Foursquare in 2009. Foursquare, offering location-based social networking services via mobile devices, had over 3 million users worldwide as of September 2010. The online magazine AskMen.com rated Dennis Crowley No. 19 of the "Top 49 Most Influential Men 2010".
Foursquare is a location-based social networking website, software for mobile devices. Users "check-in" at venues using a mobile website, text messaging or a device-specific application. They are then awarded points and sometimes "badges." The service was created in 2009 by Dennis Crowley and Naveen Selvadurai; Crowley had previously founded the similar project Dodgeball, which Google bought in 2005 and shut down in 2009, replacing it with Google Latitude. As of November 2010, the company reported it had 4.5 million registered users.
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