We have the power to change. We have the power to save power and make the world a greener place. It doesn't take much. Even just remembering to turn off your computer at night makes the difference. HP with the help of Arc Worldwide Singapore puts at our disposal a widget than can keep track of the energy we use as well as of the carbon emission reduced.
It's an interesting yet very ambitious project. A good idea, nicely designed but probably too complex to generate big numbers.
If you decide to join have to sign up on the site, wait for the confirmation email, download and install the widget (and Adobe Air) and then even fill in an activation code. And then you always have a widget open on you desktop that provides you info not interesting and relevant to you to keep it always on.
Widget marketing is tough, and rarely worth the effort. But I will be happy to hear of successful case studies.