Every day Foursquare users create millions of check-ins using the location-sharing platform. Those may be only a small fraction of the traffic seen by its API, which we've estimated receives at least 5 billion requests per month. The company continues to expand the local data made available via its API, so developers of all sorts are finding it a rich resource for building their apps.
Location-based social game FourSquare no longer has limits to where it can be used. When users click on their city name below the header of the website, they see a search box to enter a new city. Previously the service supported about 100 cities worldwide and anyone who lived elsewhere was out of luck.