Footprint Calculator

http://www.footprintnetwork.org/gfn_sub.php?content=calculator
"Global Footprint Network is pleased to announce a new Ecological Footprint Calculator! Currently we have calculators available for the U.S. and Australia, with more countries being added all the time. Click on one of these countries below to help see how your living habits relate to your use of the planet's resources."

Adding a bit more: http://www.openeco.org/
"OpenEco.org is a global on-line community that provides free, easy-to-use tools to help participants assess, track, and compare energy performance, share proven best practices to reduce greenhouse gas (GHG) emissions, and encourage sustainable innovation."

All those from the NextNowblog.