This document discusses how location intersects with digital marketing. It begins with traditional intersections like mall maps and location-based deals. It then discusses current intersections like mobile apps with location-based services and geo-targeted social media and websites. Deep dives are provided on shopkick, foursquare, scvngr and Google Places. The document concludes with discussing future intersections like indoor panoramas and hyper-localized Wi-Fi content delivery based on location.