Neil Patel wrote an excellent article that is a must read if you are trying to gain more sales by using long tail keywords.
Adam did a video back in April focusing on Long Tail Keywords
From the article:
SEO isn’t just about driving traffic to your website. It can actually be used to increase your sales. Just think about it: what’s one of the main reasons you use search engines?
To do research, right?
For example, if you are interested in purchasing Crazy Egg, you may do a Google search for “Crazy Egg review” to see what other people think of it. If the reviews are positive, you’ll be more likely to get a few more sales.
Because reviews of Crazy Egg are good, we were able to generate $19,380 in the last 12 months in income from the sites that rank on page one of Google for “Crazy Egg review”.
Read the whole article here