There are now 5 million users on foursquare, so chances are you know weveral people that are using the social site. It is what I call a location based-micro-social media site. When you start using it, you start to want to know how to earn badges.
The Starbucks badge is pretty easy to earn. Just check in using foursquare to 5 different starbucks, and you will be awarded this flashy badge.
Check out foursquare at www.foursquare.com if you want to sign up for it.
I'm up to 55 badges, you can see me here: http://foursquare.com/chris_alston
Just like any other form of social media, whether it is Twitter or Facebook or LinkedIn or ActiveRain... You have to put effort into it, to see a return. And yes, I do see a great return with Foursquare. It has allowed me to make great contacts, and closer ones too. Try it out. :) It's not for everyone, but I am loving it, in regards to Real Estate. If I wasn't in RE, I probably wouldn't be using it.
Have a great day!!!