Green WebHosting

I am now scouting for ecofriendly webhosting services to host iBlackle. It only makes sense that Your Energy-Efficient Search Engine be hosted on an environment-friendly webhosting service, right? So if anyone can give me a good suggestion as to the best Green Hosting out there, I would appreciate it.
Also, if anyone wants to sponsor iBlackle for hosting - that would even be better!