Affiliate marketing means a business pays other parties under an agreement to help bring a product or service to an audience. In my original explanation from 2011, I summarized it as letting others help sell your product. That remains a useful starting point, although the result you pay for can vary.
When does payment happen?
A partner may be paid for a sale, a referred customer, a signup or a click. With payment per sale, a cost usually arises only when an order meets the agreed rules. With payment per click, you pay for traffic even if nobody buys. Neither model is automatically risk-free. Fraud, returns, poor measurement and an ill-matched audience can all change the outcome.
Set out what counts before you begin. Does a cancelled order qualify? How long can a referral be credited? Who sees the reports and how are errors resolved? A high commission may look attractive, but it must fit your margin, support costs and the number of customers who return later.
Protect trust
An affiliate who recommends your product draws on the trust of their readers or followers. Make commercial relationships clear. If you earn from affiliate links yourself, readers should understand that a purchase can reward you. An honest account of strengths and limits serves them better than a recommendation designed only to maximize a commission.
The core of my old article is that a business can share distribution with partners. My former rejection of every payment model other than a sale was too simple. Choose the model that fits your aim, measure actual returns and keep the customer relationship central.