GitHub’s support for GeoJSON is awesome. Custom styles, Maki icons, POI coalescing. Just rad. https://gist.github.com/warrenm/46e305ce94d3b82a477b …pic.twitter.com/fXMuC2Sxfl
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@TannerLD Pulled raw data from Socrata and fed it through a custom quadtree implementation / GeoJSON generator written in Obj-C.