Show HN: Foursquare Heatmap Time-Lapse Videoshttp://www.youtube.com/watch?v=xHah4h2UCG4&list=PLq3M6ODce1N6IZoXoisCw5WHjEQs7SAWl&index=1 by borego • 13 years ago 2 1 13 years agoYOyoutube.com