Search Engine OptimizationSearch Engine Optimization (or SEO) is the systematic process by which an organization gains better search engine visibility over time. The majority of online searches take place on the three big search engines: Google, Yahoo, and MSN, with Google controlling most of the current market. There are two types of results which show up when a user performs a search in one of these engines: sponsored listings (for which there is a cost) and organic results. SEO focuses on achieving organic results. Organic results are links to sites that the search engine has dynamically, and seemingly magically, ranked as being most relevant to any particular keyword or phrase. Unlike sponsored listings, you are not charged by the search engine if someone clicks your link as the result of an organic search. The higher your website is on the list of organic search results for your keywords, the more visitors your site is likely to get.