We recently learned about Good Search. It’s a search engine that splits their advertising revenue with charities. You pick your favorite non-profit (US only, for the time being), and the group earns money with each search you do. You can search from their homepage, get a plug-in for your browser, or download a toolbar. You can change the designation as often as you like. It uses the Yahoo search engine, so searches are of the same caliber as Yahoo. Check it out!