Search Engine Optimization (SEO) is everything today. If you are going to create a website and if you are going to put content out there, you might as well take the time to make sure people find you.
SEO is how websites get found by the best and most qualified traffic. Good SEO starts with the web design, continues with the content and keeps going with ongoing posts, blogs, videos and more. SEO brings in traffic that is going to be more engaged with your site and more inclined to take action.