An e-commerce merchant that wants to be able to reach a wider base of internet users and shoppers may hire an affiliate. An affiliate could be the owner of multiple websites or email marketing lists; therefore, the more websites or email lists that an affiliate has, the wider his network. The affiliate that has been hired would then communicate and promote the products offered on the ecommerce platform to his network. The affiliate does this by implementing banner ads, text ads and/or links on their multiple owned websites or via email to their clientele. Advertisement could be in the form of articles, videos, images, etc., which are used to draw an audience’s attention to a service or product.
Websites consisting mostly of affiliate links have previously held a negative reputation for underdelivering quality content. In 2005 there were active changes made by Google, where certain websites were labeled as "thin affiliates". Such websites were either removed from Google's index or were relocated within the results page (i.e., moved from the top-most results to a lower position). To avoid this categorization, affiliate marketer webmasters must create quality content on their websites that distinguishes their work from the work of spammers or banner farms, which only contain links leading to merchant sites.
Affiliate marketing overlaps with other Internet marketing methods to some degree, because affiliates often use regular advertising methods. Those methods include organic search engine optimization (SEO), paid search engine marketing (PPC – Pay Per Click), e-mail marketing, content marketing, and (in some sense) display advertising. On the other hand, affiliates sometimes use less orthodox techniques, such as publishing reviews of products or services offered by a partner.