Affiliate Marketing is a popular method of promoting web businesses in which an affiliate is rewarded for every visitor, subscriber and/or customer provided through his efforts. It is a modern variation of the practice of paying finder's-fees for the introduction of new clients to a business. Compensation may be made based on a certain value for each visit (Pay-per-click), registrant (Pay-per-lead), or a commission for each customer or sale (Pay-per-Sale).

The most attractive aspect of affiliate marketing, from the merchant's viewpoint, is that no payment is due to an affiliate until results are realized.

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