I am in the market for an entry level DSLR. One model that interests me is the Canon Rebel XS. I also found a rebate of $50 for it. To qualify for the rebate, you need to have a previously registered Canon camera and you also need to purchase your new camera through authorized Canon dealers.
If you go online and search information about authorized Canon dealers, you can find some lists from some online communities. Those lists are dated. Some companies are even out of business already.
Finally, I found an official list from Canon USA. Here is the direct link to the file.
It started out when I saw a post about a free album download from Amazon. The album is called Sarah Chang Selections and here is the link to the album. After I installed the MP3 downloader and download the album, I found more free albums. These free albums can be found by visiting the Amazon.com home page under More Items to Consider after you download the album. BTW, you need to have an account with Amazon to get the download. A valid credit card is required to create an account.
There is also a page listing all the free songs scattered throughout the site. Here is the link of over 1400 free songs. Enjoy!