A fantastic example of “2.0” success.
After terrible earthquake in Haiti, OpenstreetMap community manage to create a very accurate and up-to-date map of Port-au-prince.
This is the result of more than 800 contributions done by people on the field mixed on yahoo! images qnd some old CIA’s maps.
The objective is to assist humanitarian aid organisations that are on the field now.
You can check the result ( still under construction ) here