As an Internet marketing strategy, SEO considers how search engines work, what people search for, the actual search terms or keywords typed into search engines and which search engines are preferred by their targeted audience. Optimizing a website may involve editing its content, HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of backlinks, or inbound links, is another SEO tactic.  Local listings in phone books are now being replaced with SEO, one such example of this would be this Oklahoma SEO company. They shared some of their experiences with us.  At one time they where focused on computer services and computer networking.  With cloud computing replacing traditional networks they have focused their attention to online marketing.  Their local Oklahoma SEO company now ranks local businesses in their area on search engines.  They also promote products across the USA.  Once they where confined to working in their local market, but with the internet, they are able to work in any state.