Affiliate marketing is a process where the merchant will pay a portion of their sales revenue to an affiliate if the sale is a result of the affiliate's promotion to the products and services offered by the merchant.
Nowadays, it's one of the fastest growing industries because it's cost efficient and quantifiable for both the affiliate and the merchant. Other players can profit as well, such as the affiliate network or the affiliate solutions provider.
The best benefit for the merchant is the fact that he will gain opportunities to advertise his
products to a much larger market, therefore increasing his chances to earn. The more affiliates the merchant obtains, the more sales he can expect.