- MapMill
- Crowdsource verifying good images to use for aerial mapping
- http://mapmill.org
- Public Laboratory for Open Technology and Science
- http://publiclaboratory.org
- Mostly has balloon/kite mapping information
- Grassroots Mapping
- http://grassrootsmapping.org/
- Crowd sourcing aerial mapping so it is in the public domain
- Humanitarian OpenStreetMap Team
- http://hot.openstreetmap.org/
- Initiative to apply the principles of open source and open data sharing towards humanitarian response and economic development.