Small Business Labs: What is Foursquare & Why is it Getting So Much Hype?
“Foursquare is the leader in a new generation of ‘find a friend’ applications. According to their website, Foursquare ‘s a cross between a friend-finder, a social city-guide and a game that rewards you for doing interesting things.’
To use Foursquare you simply tell the application where you are and comment in some form. This is called a ‘check-in.’ Foursquare targets mobile phone users and the vast majority of check-ins are done using smartphones.”