Affiliate marketing is a promotional strategy where businesses reward affiliates for each visitor or customer[2] brought by the affiliate’s marketing efforts. This marketing model can trace its roots back to revenue sharing concepts, with the internet[3] version patented by William J. Tobin in 1989. Over the years, the affiliate marketing industry has grown significantly, with different sectors like retail[4], gambling, and file-sharing becoming active players. The industry has adopted various compensation methods, including revenue sharing and cost per action. Additionally, it has embraced the use of different performance methods like cost per mille. While affiliate marketing promises potential profits, it also faces challenges like spamming[5], adware, and legal issues. Despite these, it remains a preferred marketing strategy[1] for many merchants due to its pay-for-performance model.
Affiliate marketing is a marketing arrangement in which affiliates receive a commission for each visit, signup or sale they generate for a merchant. This arrangement allows businesses to outsource part of the sales process. It is a form of performance-based marketing where the commission acts as an incentive for the affiliate; this commission is usually a percentage of the price of the product being sold, but can also be a flat rate per referral.
Affiliate marketers may use a variety of methods to generate these sales, including organic search engine optimization, paid search engine marketing, e-mail marketing, content marketing, display advertising, organic social media marketing, and more.
Though the largest companies run their own affiliate networks (for example Amazon), most merchants join affiliate networks which provide reporting tools and payment processing.