As one of the hot social-location properties, Foursquare has a wealth of information about where you go. Unfortunately, it doesn't really offer many good ways to visualize it. In fact, Foursquare only focuses on providing a text stream of your check-ins. A new app takes that data and puts it on a map. 4mapper , built by John Wiseman , is a very simple application. Once you authorize it to use your Foursquare data (via Foursquare's new API ), it will pull your location information and place it on top of a Google Map. Your check-ins are displayed as white dots on the map. The more times you have check-in to a certain place, the larger the dot will be. Clicking on these dots will give you more information about where you checked-in. And you can zoom in on the map for better detail about your check-ins.