Green Mountain Energy has launched a new site, BeGreenNow, a My Space viral campaign, and a social networking program to sell carbon offset credits.

BeGreenNow has a carbon calculator that lets individuals figure out their carbon footprint. It then sells carbon offset purchases that go to Green Mountain Energy projects. 

There’s information for businesses, but Green Mountain has a different site for commercial sector clients at eMission Solutions.

BeGreenNow visitors have to provide an email address to use the calculator- there’s no signup to receive future email marketing, so it’s not clear what Green Mountain will do with them – and can login to recalculate your footprint and buy more offsets later. You can also create a profile page with picture for social networking.

The site even provides html code visitors can copy and paste into a MySpace page or personal website to spreed Green Mountain’s program.

The BeGreen carbon offset program is also sponsoring a video contest on its MySpace Page where users can submit a video about what they do to Be Green. Visitors vote on their favorite video.

The prize? $500 worth of Green Mountain carbon offsets.

The campaign was developed by green marketing company, digital-telepathy.