Show HN: Foursquare Heatmap Time-Lapse Videos Posted by borego on Saturday February 23, 2013 @12:35AM from the show-hn dept. http://www.youtube.com/watch?v=xHah4h2UCG4&list=PLq3M6ODce1N6IZoXoisCw5WHjEQs7SAWl&index=1 ( 1 comment | 2 points | on HN )