The Amazon Associates program allows you to earn a portion of sales when people click-through from your blog to Amazon.com and make a purchase.
You only earn money when people buy something from the web giant and the amount you earn varies based on what people order and how many people purchase through your links.
The Associates program works best for people whose blog focuses on products and shopping in someway. You’ll earn more money if people are in a shopping mood when they visit your site.