Search Engine optimization Process to achieve top ranking or top position on search engine Result Page.SEO is the best method to get good traffic to your site, if your site is optimized for SEO you will have good traffic. You don’t have to pay to any search engine for traffic. On site optimization is the optimization process of content and source code ,Website has to be Content full with relevant keywords, if we use any images or pictures you will have to use Alt attributes, and define TITLE Tag of the web page and Meta keywords. Do link your site with quality back links. Choose the best site for linking, good PR site with less external linking. Choose the only relevant category for submissions, Submit to blog, directories, articles, forums, press release. Also do some SMO.