Foursquare

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=All about Foursquare= As of June 2011, the company reported it had 10 million registered users.

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Uses
Users "check-in" at venues using a mobile website, text messaging or a device-specific application by selecting from a list of venues the application locates nearby. Each check-in awards the user points and sometimes "badges". Just sign up at Foursquare and check in now!

Tips and Tutorials
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