Foursquare founder's wife was photographed wearing another runner's bib number. Dennis Crowley, CEO of Foursquare, tweeted this photo of himself with his wife, Chelsa Crowley, before the Boston ...
If you've "checked in" to an urban hotspot, say thank you to Dennis Crowley, the 36-year-old co-founder of location-based social tool Foursquare. Using Foursquare's smartphone app, users can discover ...
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