Troy, have you looked into Amazon Affiliates? I'm an admin for another forum and I implemented it on our site. I have a tab at the top of the screen and I just let the members know if they wish to buy something on Amazon, to click that tab first and anything they purchase, the site gets a %. With the control panel, you can also make up relevant links to products that include the correct tag so the site gets the credit. Since August when I started it, we generated over $1600 in sales for Amazon which netted us about $90. It isn't huge numbers but it will help when the bills come due again.