Paid advertising — this method requires an effective combination of ad copy, graphics, and a highly-clickable link. Unlike more traditional affiliate marketing strategies, paid advertising (through pay-per-click ads) earn you money regardless of whether a reader buys the product or not. Services like Google's AdSense make this quick and easy for you, and can even supply you with an advertising code.
In comparison with Dropshipping, affiliate marketing is a lot easier to start and manage. In a dropshipping website, you will have to actively monitor the store and order products through suppliers. All this requires time. But in an affiliate website, you don’t have to actually do any of this because you get a commission by letting people buy through your link. That’s it.
Cost per click was more common in the early days of affiliate marketing but has diminished in use over time due to click fraud issues very similar to the click fraud issues modern search engines are facing today. Contextual advertising programs are not considered in the statistic pertaining to the diminished use of cost per click, as it is uncertain if contextual advertising can be considered affiliate marketing.
As far as dropshipping, in my experience if you work with product manufacturers and legitimate distributors, profit margins can range between 20%-60%. It really depends on your niche or what products you choose to market. I'm currently receiving 60% profit margins in a particular niche, but having to offer free shipping to remain competitive cuts slightly into the profit, unfortunately.
So as an affiliate marketer, you have to build a compelling website, attract traffic to that website, and retain a consistent audience in order to sell ads. Then, you join an affiliate network like Amazon or eBay, and they show ads on your site. It’s important to note that affiliates don’t earn money by simply serving ads. They have to direct qualified traffic to a company’s site so that the company can earn more in sales.