One type of affiliate marketing website is a product review website. A reviewer will offer opinions and a guide to a product and include a link to purchase said product. The reviewer will receive compensation from the web site host based on clicks or purchases, based on terms agreed to before the link being hosted on the review page.
This differs from traditional sales affiliate marketing websites as there is editorial content provided and the link is a resource for consumers to visit and possibly purchase. Often times an affiliate marketing network will be able to commission product review at no cost (from other consumers) yet still be able to profit in some manner from the affiliate link posted on the page. These types of affiliate marketing networks often time are able to achieve higher validity and trust of consumers via the reviews left by everyday fellow consumers.