There are some interesting web 2.0 sites that harness social networks to make us more green. From the MakeMeSustainable blog:
How MakeMeSustainable Can Help
MakeMeSustainable was created to fill the void between how we feel about our environment and what we do about it. We bring you the tools to take action. Our Carbon and Energy Portfolio Manager enables you to visualize and contextualize your individual impact. MMS’ sustainable solutions empower you to act upon your knowledge. We can help you to become a more environmentally conscious and efficient individual or business.
I like what this site (and similar ones) is trying to do… Using this in a business context makes sense… teams, metrics, etc, all tracked on the web… How about individual and team KPIs for sustainable business practices?