Today I went to Trader Joe’s and I checked in using Foursquare. Twenty seconds later a message popped up on my screen:

A cross sell based on my check in location! This is the next generation of social media + commerce. Geo targeted ads and deals based on location and check in preferences.

I also started a Hobby site for finding deals on Foursquare, Gowalla and Yelp. Check out Check In Deals for the latest deals on your favorite “check in” service