Alyssa Crankshaw discusses location-based social apps and their growing popularity. She notes that Foursquare allows users to check-in at locations and earn points/badges, and that brands are starting to use apps like Foursquare to reward customer loyalty and learn more about foot traffic and consumer behavior. Several examples of brands partnering with location apps are provided, such as Bravo TV offering prizes through Foursquare and Incase partnering with Gowalla to promote their products.