Once you are through with setting up your web pages, and completing on page optimization factors, the next step is promotion for the same. This is called off page optimization, where in you will have to get the attention of search engine crawlers to your site. Best way to start it by submitting your site to a Web Directory . Submitting to quality directories have proved to give better results for Search Engine Optimization campaigns.
You may want to see this Search Engine Optimization Blog to keep yourselves updated with latest trends in SEO.