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Foursquare is a location-based social network that motivates its users to get out and explore a city using three basic concepts – loyalty, encouragement and discovery. In January of 2011, Foursquare stated on its blog that the company grew 3,400%.
Forget to pick up paper towels on your Costco trip?
Google Places (formally Google Local) allows business owners to add their business, so that their customers can find them on Google .