Earn Money Online by Affiliate Programs: Affiliate programs allow Web sites who provide links to your site to receive payments or reciprocal advertising in exchange for promoting your Web site. The amount of money you make depends on what you are selling. Done correctly, affiliate marketing is one of the most powerful ways to make money from the web. Amazon, Commission Junction and ClickBank are three of the biggest affiliates, where you can use if you are branching out into affiliate marketing.