Affiliate marketing can be divided into three main types: Pay Per Sale, Pay Per Lead and Cost per Click. The most common type of affiliate marketing is the pay-per-sale program, where an affiliate earns a commission when someone buys something from the merchant's website after clicking on their link or banner ad. This type of program is also known as cost per action (CPA).
The second type of affiliate marketing is pay-per lead programs. In this case, affiliates earn money for every visitor they send to the merchant’s site who signs up for a specific service such as newsletter subscriptions or membership in some sort of club or organization. Lastly we have cost per click (CPC) programs which are similar to PPS but instead pays based on clicks rather than sales; so if an advertisement generates enough clicks but no sale then still there will be some revenue earned by the publisher/affiliate marketer through CPC campaigns..
In conclusion, Affiliate Marketing has become one of today’s most popular online advertising methods due to its flexibility and effectiveness at driving traffic and generating leads while providing merchants with low costs associated with advertising their products online compared to other forms such traditional media like television commercials etc.. There are many different types available depending upon what kind goals you want your business achieve whether it may be increasing sales volumes , building brand awareness , gaining more conversions etc .