
I have been getting involved recently with the Humanitarian OpenStreetMap initiative. It is a great group that collects data and information and puts it to use to help communities during a disaster and to prepare and recover as well. I sing thig groups praises.
Also, I recommend learning more about how to map on the OpenStreetMap software. It is fully community and local driven with people in those communities doing a lot of the coordination and collection. Keep in mind OpenStreetMap is a worldwide community. They have folks in so many countries around the world and projects from many places that really need the help.
Good group!
Check out the OpenStreetMap itself and the Humanitarian OpenStreetMap initiative.