An affiliate program is a program, run by a company or a third party for the company, that allows other companies, or individuals, to advertise and market the company's products or services for a commission fee per item sold. The incentives offered by these programs encourage new and experienced internet marketers to sign-up as affiliates.

By understanding what is an affiliate program, it should be easy to imagine that just about any product or service can be marketed and sold through an affiliate program. E-commerce, Travel, Dating, and Health and Beauty are some of the more popular affiliate program categories.

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