Check out the photos and text at Popsci.com. I've personally been to two of the top ten. What's your score?
Interfaith Power and Light is a religious response to global warming with chapters in 26 states and Greater Washington, D.C. Find a link to your local chapter at http://www.theregenerationproject.org/State.Check out the National IPL Blog.
Find discounts on energy saving products at http://www.shopipl.org/