Search Engine Optimization, SEO in short, is the process of improving a website for optimal performance and placement in search engines' natural (or organic) search results to achieve higher volumes and quality of visitor traffic. Search engine results return thousands, even millions of results - the higher a website is listed (or the higher it ranks) the more visitor traffic is experienced.
"An estimated 60-70% of all searchers click on organic listings within the first few pages of search engine results. If a website is not listed in the top-20 listings it will not be found."
SEO is often utilized as an online marketing strategy and tactic for increasing a website's relevance to Search Engines and Visitors alike. SEO takes into consideration how algorithms work and what the internet community searches for to find pertaining websites. SEO efforts involve an array of tactics and tasks to improve the quality and relevance of a website's content as well as search engines readability, known as crawling or spidering a website. These tactics start at developing a site's coding and structure to be search engine friendly and evolves into unique keyword driven content. Other forms of advanced SEO management may involve page indexing programs and submission to search engines, the development of site maps and tools for frequently updated content such as a web blog or RSS (really simple syndication) feed.