Relevant content.
Definition. When you are planning your website it's important to write relevant content. Search engines look for content that they tag as more relevant than other pages that may not be as relevant to a certain topic. We all seek more relevance when we search the internet and search engines are there to help deliver relevance and therefore increase their market share so they really don't want to include content that is not relevant to a persons search. "The Google Tree" - good or relevant content  helps organic search engine optimisation. And it needs good content that is relevant , the deep green content is your primary business aim.  (next)