Affiliate marketing involves earning a commission by promoting a product or service made by another retailer or advertiser. It is a monetization model where an affiliate partner, which is you, is rewarded a payout for providing a specific result to the retailer or advertiser.
Typically, the result is a sale. But some programs can reward you for leads, free-trial users click to a website, or getting downloads for an app. Currently, I am an affiliate for Simply Invest and Amazon Associates.