The document provides information about audience preparation for a presentation on geo-location and discusses several location-based apps and social networks. It summarizes key features of Foursquare and SCVNGR, including check-ins, badges, and special deals on Foursquare and scavenger games on SCVNGR. It also discusses how other social networks like Facebook, Twitter, Google+, and Yelp incorporate geo-location into their features and capabilities. Emerging technologies that could enhance geo-location are also mentioned like automatic check-ins, RFID, NFC, and augmented reality.