If you're looking for a way to feel all warm and fuzzy inside, like you're making a difference in this world, but are just absolutely sick of all this "green" crap, check out the GoodSearch search engine. The underlying search engine is Yahoo, so you should still find what you're looking for. The difference is you choose a charity when you first go to the site, and when you search, half the advertising revenue GoodSearch makes from your search goes to the charity you designated. From what I read in the Seneca Park Zoo newsletter, it comes out to about a penny per search.
You're giving back without opening your wallet or going out of your way. Anybody can do it, and it all just happens while you're doing what you would normally be doing anyways.