SlashMySearch is a internet search engine that pays it uses as they search. An interesting thought, I'm sure there are plenty of sites like this out there, but I thought I'd give it a try. I came across it at CJCM and IT via ProBlogger.
Simply signup and set your unique URL as your homepage. I don't think it's everybodies cup of tea and it might get a little annoying but it's got to be worth a try. They also run a referral program, so tell your friends!.