Checking in at Foursquare's Hot Tubbin', Rooftop, Rock Star Moment | Fast Company

Checking in at Foursquare's Hot Tubbin', Rooftop, Rock Star Moment | Fast Company: "Since then, Foursquare's user base increased five-fold (from 200,000 to 1,000,000 users), and it's managed to steal the spotlight from established networks like Loopt and Brightkite and upstart competitors like Gowalla. 'Foursquare has a personality that's fun to interact with,' explains New York resident, Leslie Forrester. 'This identity makes it funner than the other ones.' Brandon Keene, a 24-year-old Foursquare user at the party, adds, 'It's interesting that users are so passionate about Foursquare that they threw this party for them, rather than Foursquare throwing it themselves. People are obsessed with Foursquare. It's kind of ridiculous.'"