Web 2.0 Tools

I was amazed at the number of Web 2.0 tools highlighted at the following web site: http://www.seomoz.org/web2.0/ I, of course, looked for something ecology minded and did indeed find http://www.begreennow.com/. I used their carbon footprint calculator and was dismayed to see I'm higher than average in my use of c20 emissions! They encourage you to give to their causes to offset your carbon footprint. I don't know enough about their organization to give them a nay or yea. I have my own set of environmental organizations that I give to that hopefully offset my carbon footprint. The site does have some interesting articles and links about everything green though...so it's worth a look.