Foursquare Checks In 10M Users

Foursquare today announced it now has 10 million registered users, an important milestone for the location-sharing start-up. A blog post offered more fun facts and visualizations, including: 78,387 Foursquare venue mayors are ousted per day; 1,061 birth announcements have been made through hospital check-ins; and there are 6,230 sake-bar venues in Japan.