DATA USA

DATA USA claims to be the most comprehensive visualization of U.S. public data. FlowingData seems to like it.

Free ASTER!

It's about time...ASTER was getting more and more irrelevant, but now NASA, Japan Make ASTER Earth Data Available At No Cost.

Energy Landscapes

Energy Landscapes: An Aerial View Of Europe’s Carbon Footprint is a nice photo essay.

http://e360.yale.edu/images/features/150730-0539.jpg

Urban Diversity

United States Congressional District Shapefiles

United States Congressional District Shapefiles provides just that - digital boundary definitions for every U.S. Congressional District in use between 1789 and 2012.

Beam

Beam promises super-simple online charting and delivers. Of course, if you actually want to save, download, share your chart they want your name and email.

Flyover Country

Nice app by the University of Minnesota: Flyover Country - see the geology beneath you as you drive or fly over it. Read more about it over on CO.DESIGN.