Open Street Map is a wiki-based mapping site that allows people to participate in crowd-sourcing the creation of maps. Have a look at OSM. Is your street there? If it's not, log in and add it. Add points of interest like schools, hospitals and parks.
This video shows a time-lapse of the creation of the map covering the greater London area. It's a lovely metaphor for a community of people creating knowledge out of darkness.
London OSM Edits 2005-2010 from ItoWorld on Vimeo.