Why Foursquare is important

Here's my post on iCrossing's Great Finds blog about Foursquare. It's meant as a quick primer on the service for the uninitiated, and why, IMHO, it's going to be big. As always, comments are welcome!

Read my iCrossing Great Finds post here: Why Foursquare is important (and it's not just because I'm the mayor of 14 places)