Sources

Anil Dash: RT @peretti: Very smart interview with @dens about how Foursquare adapts to change - he's the real deal http://t.co/6po9GYdc

Jonah Peretti: Very smart interview with @dens about how Foursquare adapts to change - he's the real deal http://t.co/6po9GYdc

John Carney: RT @fimoculous: Another good little profile of @dens & @foursquare about survival in rapid change: http://t.co/SaZJW9zC

Rex Sorgatz: Another good little profile of @dens & @foursquare about survival in rapid change: http://t.co/SaZJW9zC

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