The term "SEO" is the abbreviation to "Search Engine Optimization". This is not about optimizing search engines, though. It is about optimizing websites for search engines.SEO is one of the most effective things you can do online, getting your web site optimized in such a way that the search engines will reward you by basically sending traffic your way. SEO is not really that simple but the bottom line is if your page is optimized both on page and off, you generally get higher natural search engine rankings, which leads to traffic for you.Simply put, SEO is marketing through an understanding of how search algorithms work combined with a knowledge of what human users might search for. The end goal is to create a site that contains words for which people will likely search when looking for information such as that contained on your site.