As smart phones explode in popularity they are prompting the development of new kinds of social media services, notably "location-based services" that reward people for actively sharing their physical locations, a process called "checking in". Now a new wave of similar services will accomplish this automatically, with little or no input from us. Does this demonstrate our newfound comfort with surveillance, and are we getting enough in exchange for the privacy we're discarding?
Briefly, location-based social media services are a rapidly emerging kind of application largely driven by smart phones. The use of these apps on smart phones helps connect the web to the physical world: the stores, places, and communities around us. Some of these services are game-like, such as Foursquare and Gowalla. Others are tied into review sites like Yelp, or map services like Google Buzz, Places, and Maps. Twitter and Facebook are also actively getting into the location-based services game, adapting their services and apps to take advantage of the world around you and help you connect not only with friends, but the places and business that are nearby.


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