The Web map stack on Django

The document discusses the web mapping stack in Django. It provides an example application called "Your Political Footprint" that allows users to geocode an address and see the congressional district. It describes using GeoDjango with PostGIS to store spatial data and Mapnik to render map tiles. It also covers tile caching with TileCache or pre-rendering tiles and serving them with Nginx. Clustering algorithms are presented to group points on a map.