Wow, I found this site by looking at a Canon Rebate form and seeing the “web-rebates.com”:http://web-rebates.com URL, it turns out that if you put your last name and address in, it will find lots and lots of different rebates. At least Canon, PriceGrabber, Vonage and Samsung all use the same service. I could check on the status of two years worth of rebates. Very useful.