Final answer:
Affiliate marketing is an e-commerce business model where websites are paid a fee when purchases come through them.
Step-by-step explanation:
Affiliate marketing is an e-commerce business model where websites are paid a fee when purchases come through them. In affiliate marketing, websites act as intermediaries between customers and businesses. These websites promote products or services through advertising or content, and when a customer makes a purchase through the website, the website earns a commission.