Hey Courtney, I haven’t had any websites impacted with the update actually. I also don’t really even think about or care about keyword density in my articles either. My recommendation is to remember that Google’s goal is to provide the best search results and if your goal is to make a website that is genuinely better than the website currently ranking in the first position that the rest will follow (particularly if you’re going after an authority website approach)
Affiliate marketing currently lacks industry standards for training and certification. There are some training courses and seminars that result in certifications; however, the acceptance of such certifications is mostly due to the reputation of the individual or company issuing the certification. Affiliate marketing is not commonly taught in universities, and only a few college instructors work with Internet marketers to introduce the subject to students majoring in marketing.
So I went to the same place I buy all my WordPress themes (Themeforest) and searched their hundreds of demo WordPress Themes to find the right one that made sense for my Amazon Affiliate Website. This is the style and look your website will have. I needed a clean looking blog (it’s great for SEO) and I needed a warm looking homepage. I found something flexible and looked professional after a couple hours searching.
SEO: getting consistent traffic by writing AWESOME content about your keywords (there’s a phrase “length is strength” in SEO and this paid off big time for me). Maybe you’re doing videos or an eCourse, but I found blog posts WAY easier to update which means less maintenance. The biggest factor by FAR was the time I spent meticulously creating my tutorials… which eventually resulted in a sudden 3x increase in SEO traffic