How to make maps with a kite or a balloon

Techniques and tools for people who want to make maps. Includes readings and case studies on grassroots mapping projects.

http://grassrootsmapping.org

http://unterbahn.com/search/rectify - the 'hack' bookmarklet used to add a Google Maps layer to Map Warper. See details here: http://wiki.grassrootsmapping.org/wiki/show/MapWarper

http://unterbahn.com/search/grassroots+mapping