If you're looking for a new tool to help you track your effectiveness in reducing greenhouse gas emissions, you'll find the free OpenEco.org a great resource. The site has been around a while, but recently was revamped. If you know of it, but haven't used it for a while, it's worth checking again. And if you've never used it, now is a good time to try it.

The site estimates the entire carbon footprint for your entire organization, not just IT. And it can incorporate information from many sources, including steam, mobile sources, business travel, electricity, and natural gas use.

You'll find the site particularly helpful if your organization needs to report on your greenness. It uses standard carbon accounting practices to make sure that your greenhouse gas emissions estimates can be used for multiple frameworks, including the World Resources Institute Greenhouse Gas Protocol and the EPA's Climate Leaders Program.

Also useful are the site's many resources, news feeds, and a forum that lets you talk with others and share best practices.