Affiliate Marketing is by far, one of the easiest ways to make money online. It is a revenue sharing business relationship between the affiliate who agrees to promote the products or services, and the merchant who offers them.
The affiliate advertises the merchant's products and services and gets a commission for every successful referral. Every time a customer is referred to the merchant's site, through the affiliate's efforts, and makes a purchase, the affiliate gets a share of the profit. No payment is due to the affiliate until successful results are realized. Compensation is based on either number of visits (Pay-per-click), registrant (Pay-per-lead), or commission for each sale (Pay-per-sale).