This niche site has about 3 backlinks from the mini private blog network (PBN) that I was trying to start. It ended up being too much work at the time so the put the project on the shelf. However, I’m starting to work on the PBN again for future projects. So, I think the summary is that a PBN was not utilized for ranking this niche site that generated the $10k in 2013.
Affiliate marketing overlaps with other Internet marketing methods to some degree, because affiliates often use regular advertising methods. Those methods include organic search engine optimization (SEO), paid search engine marketing (PPC – Pay Per Click), e-mail marketing, content marketing, and (in some sense) display advertising. On the other hand, affiliates sometimes use less orthodox techniques, such as publishing reviews of products or services offered by a partner.