These are great tools. I am particularly interested in how affective check-ins are at bringing in new customers. Foursquare has the data to show who the real so

These are great tools. I am particularly interested in how affective check-ins are at bringing in new customers. Foursquare has the data to show who the real social influencers are. Some users may not help, but some could bring dozens of friends with one check-in.