An affiliate link is a unique URL assigned to a specific affiliate that contains and records the affiliates ID or username, allowing the affiliate to get credit for the traffic sent to the advertisers website. When someone clicks on an affiliate link and performs the action that an advertiser pays a commission for, the affiliate gets paid. Affiliate links are used in affiliate marketing programs, which is a marketing arrangement in which affiliates receive a commission for each visit, signup, or sale they generate for a merchant. 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. To use affiliate links correctly, its important to make the anchor text of the link descriptive and relevant to the linked source, and to make the links clean and more user-friendly.