LinkShare Revenue sharing warehouse. Over 400 merchants to choose from all paying various commissions. Affiliate programs are a great way to make money with your site. They are free to join. Just sign up and select the merchants you wish to advertise on your pages.
Some programs pay per click, per sign up, or per sale.
They offer a wide variety of text links and banners to choose from. Each day there are hundreds of new affiliate programs popping up. Some of those programs can be a big success for you or a big failure. Because you can only be successful with promotion of someone else's affiliate program if it falls in the same category as your existing business. You need a fit.