Search Engine Optimization (SEO) is the process of optimizing your website or web page to receive high-quality targeted traffic from search engines such as Google, MSN, and Yahoo! Search. Typically, the better your site is optimized, the higher “rankings” it will receive in the respective search engines - theoretically increasing the number of visitors to your website.
The most commonly targeted search results by the search engine optimizers are often referred to “organic” or “natural” search results and rankings. These natural results are most often found just below the sponsored results on a given search engine query result page.
Although natural search results are the most commonly targeted by search engine optimizers, it is important you consider the different kinds of search including: image search, local search, and industry-specific vertical search engines when developing an SEO strategy.
Although SEO as a whole can become very complex – especially for sites in very competitive markets; in general, SEO can be summarized as the modification of your web site’s source code, content, and structure to improve your search engine ranking.