How to get free song downloads from Amazon.com:
First, click the banner at the top of the page. Click the green GO button, no need to enter anything into the search field. On the left side of the screen under Category click MP3 Songs. Take your mouse to the right now and click on the little arrow thing next to "Sort By Bestselling". A drop down will appear. Choose Price: Low to High. Now you will see all the free MP3 songs available!
There are too many free song downloads to list here, and they change often. Keep checking back!