In its simplest form, search engine optimization can be defined as the technique of making web pages and sites accessible to search engines through two main considerations-keywords and backlinks.Keywords are actual text that define what we do, and who we are. They exist on our pages, in titles and descriptions.When keywords exist on other web sites in the form of hypertext, and link to our pages directly - they are known as backlinks.They are very important to SEO. Having many sites online that contain this keyworded hypertext, leading back to our site - is very beneficial. It creates an association - between keyword phrases, and our site within the search engine database.