It is the search engines that finally bring your website to the notice of the prospective customers. Hence it is better to know how these search engines actually work and how they present information to the customer initiating a search.   

Search Engine Optimization is a process of choosing the most appropriate targeted keyword phrases related to your site and ensuring that this ranks your site highly in search engines so that when someone searches for specific phrases it returns your site on tops. It basically involves fine tuning the content of your site along with the HTML and Meta tags and also involves appropriate link building process

It is the search engines that finally bring your website to the notice of the prospective customers. When a topic is typed for search, nearly instantly, the search engine will sift through the millions of pages it has indexed about and present you with ones that match your topic. The searched matches are also ranked, so that the most relevant ones come first.