Affiliate Marketing can be simply defined as selling someone else’s products or services and then in return getting commission for that short of work. It has now become one of the most popular ways for people to make money online. It is basically a relationship between three parties advertiser, publisher and consumer.
Affiliate marketing is a revenue-sharing venture between a website owner and an online merchant. The website owner places advertisements on the site to either help sell the merchant's products or to send potential customers to the merchant's website. This is done in exchange for a share of the profits. There are three ways to earn money through this form of marketing: pay per click, pay per sale and pay per lead.
Here is a good link to a website for more info.
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