> They build entire webpages, along with side-stories and article comments that support their product. A lot of those websites are created by affiliates, and n

> They build entire webpages, along with side-stories and article comments that support their product. A lot of those websites are created by affiliates, and not by the product owner. The affiliate commission for digital products is pretty high (75%-85% is quite common), and affiliates often create various review sites for the products they're promoting, or use existing sites they own and add reviews written by "users" of the product.