There are now more than 10 million Foursquare users.
More than 381 million "check-ins" have been registered on Foursquare's social location-sharing service, as more than 6 million people now have accounts there and growth for the site is higher than ever.
International Space Station commander Doug Wheelock has become the first person to check in from space on Foursquare.
Foursquare works in conjunction with social networking services and allows users to "check in" at restaurants, stores, landmarks, movie theaters, etc, from their mobile phone. It taps into the phone's built-in location data and then broadcasts that information for the world to see.