Learn more about web - Teach yourself. Keep your site traffic high by Search Engine Optimization (SEO) efforts, adding dynamic content to your site, making the navigation and appearance of the site better (more user friendly) and so on.

In short, user should like to visit it again. Give all sorts of frees and frills. Introduce an interesting new idea first and make press releases. Add links to your site by submitting link, select proper keywords, designing the site according to search robot requirements etc.