Affiliate marketing works in conjunction with several other online advertising mechanisms. This is the case because affiliates will often use these platforms for marketing purposes. Some of the mechanisms include search engine optimization (SEO), e-mail marketing, paid search engine marketing (PPC-Pay Per Click), display advertising, and content marketing. At the same time, affiliates can also appropriate less traditional advertising methods. An example would be publishing reviews of services or products.
Premium content can mean any type of content you charge for - an ebook, whitepaper, downloadable guide, etc. But what I'm referring to here is pay-gated content. Basically you just put some awesome content up behind a paywall, which means visitors pay to access it. You can get your own paywall set up in 10 minutes or less using a plugin like MemberPress or Paid Memberships Pro.
Once you setup your account on AdSense you will be given a code to add to your blog. This code will automatically display advertisements on your blog from companies who are part of Google’s advertising network. You may see ads from small companies related to your topic, or you may see ads from large companies that are completely unrelated to your topic.