Search engine optimisation. (seo)
Definition.   The process of editing web pages, structure or website content so that a search engines can attach more relevance to it and list it above other website pages.When people search, they often choose websites that have been optimised over Pay per click adverts and therefore optimisation can help to provide more higher quality visitors at less cost than Pay per click. "The Google Tree" is our analogy of how organic search engine optimisation works. Lets start with website structure. The structure of your site is important, your  website structure has to at least look like a tree.  (next)