Tough question, “What is SEO?”. As with pretty much all internet-related terms, concepts and notions, that of “SEO” does not have a unique definition and it is a blurry concept in most people’s mind.
Still, what is SEO? Since there is no ultimate, fully comprehensible definition for “SEO”, the only way to go is to take a look at several definitions and try to merge them in order to have the right perspective.
Wikipedia : “Search engine optimization (SEO) is a set of methodologies aimed at improving the visibility of a website in search engine listings. The term also refers to an industry of consultants that carry out optimization projects on behalf of client sites.”
Fakezilla : “The changes that are made to the content and code of a web site in order to increase its rankings in the results pages of search engines and directories. These changes may involve rewriting body copy, altering Title or Meta tags, removal of Frames or Flash content, and the seeking of incoming links.”
The Web Search Workshop : “The term used to describe the marketing technique of preparing a website to...