USGS: Earth Resources Observation & Science Center: aerial photography, digital maps, satellite imagery, portal for geospatial data, etc.
"Appropedia is for collaborative solutions in sustainability, appropriate technology and poverty reduction."
"Our Common Future, From One Earth to One World
From A/42/427. Our Common Future: Report of the World Commission on Environment and Development"
Story Of Stuff, Referenced and Annotated Script
By Annie Leonard