@UNGtB: Figaro Digital describes GtB as "visually stunning, clear & empowering" http://ping.fm/ZCEiA
Now I don't like to brag but I helped produce this. So fuck it, I will brag! Plus it's a really important website for the UN... actually any website that helps improve sustainable behaviour is a good thing.
Check it out: www.greeningtheblue.org
A couple of other sustainability sites you should also take a look at: