"Affiliate marketing is a web-based
marketing practice in which a business rewards one or
more affiliates for each visitor or customer brought
about by the affiliate's marketing efforts. Affiliate
marketing is also the name of the industry where a
number of different types of companies and individuals
are performing this form of internet marketing,
including affiliate networks, affiliate management
companies and in-house affiliate managers, specialized
3rd party vendors, and various types of
affiliates/publishers who promote the products and
services of their partners." – wikipedia.com
Here's
a list with more information about Affiliate Marketing. Check it out!!