Encyclopedia of Earth: http://www.eoearth.org/ (EoE)
"Emphasis on
the interaction between society and the natural spheres of the Earth."
Federation of Earth Science Information
Partners http://gos2.geodata.gov/wps/portal/gos
"...a
network of researchers and associated groups that collects, interprets and
develops applications for satellite-generated Earth observation
information."
Includes administrative, geological, environmental, and
sociological categories as well as many more topics of immediate concern such as
hurricanes and wildfires.
Green Map Atlas: http://greenatlas.org/ (Green Map
System)
Promotes sustainable communities.
Renewable Energy Atlas of
Alaska
http://www.aidea.org/aea/Reports%20and%20Presentations/EnergyAtlas2007.pdf(Alaska
Energy Authority)
A 28 page pdf highlighting the various energy sources in
Alaska.
3D Nature: http://3dnature.com/EarthDay2007.html
3D
Lanscape Design & Visualization software. See free images for Earth Day. http://3dnature.com/EarthDay2007.html