I am a little partial, but I think that the A2 Hosting affiliate program is one of the best affiliate programs on the web. You can make money with other ones as well. There are some sites out there that actually point some of the better programs to join. One of those sites is AffiliateGuide.com - Your guide to the best web affiliate programs. In case you were interested, A2 Hosting’s affiliate program is listed on that page.