An affiliate is simple someone who runs a web site sending their web sites visitors to another web site in return for commissions. There are three way affiliates can earn commission:
For each click
For each sale
For each lead
To become an affiliate you simply visit the vendor’s website, enter your contact and payment details then wait for the vendor to approve your application. Once approved you are given a unique link that you can easily paste on your website. The links contains a unique tracking code so that the vendor can keep track of commissions owed to you. Signing up to an affiliate program should always be free. If you are asked to make any payment then steer well clear!