First, Amazon has something that tops all the others. You could call it brand equity, or trust, or name recognition. People know Amazon, and they trust it as a source to buy stuff. In 2017, more people started their product searches on Amazon than anywhere else—49 percent compared to 36 percent for search engines like Google and 15 percent for retailers themselves.
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.
I have found that one size doesn’t fit all. Rather, specific types promotions of particular products work well with Amazon. I have also had some success by getting people in the Amazon door for other reasons. For example I’ve experimented a couple of times on dPS with running a posts that gave readers a hypothetical $1000 to spend on photography gear and asked them to surf around Amazon and choose what they wanted to buy. The result was 350 comments (a fun community building exercise) and quite a few sales and commissions!
Developing and monetizing microsites can also garner a serious amount of sales. These sites are advertised within a partner site or on the sponsored listings of a search engine. They are distinct and separate from the organization’s main site. By offering more focused, relevant content to a specific audience, microsites lead to increased conversions due to their simple and straightforward call to action.