If you intend to profit with a website that you have, you would not go really far with it unless you hire the services of SEO companies. While it may sound crazy, try looking at it this way: if high ranking and highly profitable websites are doing it, then that must definitely mean something about SEO. If your website is search engine optimized, not only will you have a better chance of increasing your website ranking, but you will also be increasing your website’s traffic which will of course inevitably lead to more potential profits for you.