If you are trying to make a living online, your website is your source of income. Without proper search engine optimization - or SEO - you might as well be flipping burgers at the local fast food joint, because you will make more money there. 85% of people find the things they buy online through search engines, which is why it is vitally important that you get a high search engine ranking. Trying to run an online business without good SEO or search engine optimization would be like trying to run a brick and mortar store out of a plain brick building without any signs, you might get an occasional straggler walking in, but masses of people are never going to find you.