I use goodsearch.com so I can support One by One as a charity. I think it is sponsored by Yahoo.

I do use Bing for one thing though. I use it if I want to buy something on Ebay with a Buy It Now. If you search for something, say WII or Nikon D80 with Bing, you'll usually get the Ebay option to get a percentage back from a Buy It Now auction. Lately it has been 8%, but I have seen it be as much as 30%. All you have to do is click on that link and then search on ebay for whatever it is that you want to buy. Most of the things have the money back icon. You just have to have a Bing.com account (which is the old live.com from MSN) and use PayPal. The % back is deposited into your paypal account.