Affiliate marketing is a simple but powerful idea: you pay people to help you sell your stuff. A business partners with affiliates (promoters) who spread the word about their products. In return, the business pays them a commission for every sale, lead, or click they generate. It's a very popular strategy because it's performance-based—you only pay for actual results.
This model allows businesses to reach new audiences through trusted voices. For affiliates, it's a great way to earn income by sharing products they already know and love with their followers.