Much of your design and layout will be dependent on how your content is organized and how your users will access it. Creating an outline of your navigation and structure early on can help define how your site will work, and provide a guide as you begin designing and developing your pages. Keep in mind that whatever structure you develop should be extensible and flexible. As your Web site grows, it should be easy to plug in additional pages and sections. Inconsistency Consistency is one of the maxims of Web design, yet it is often overlooked when it comes to navigation.
Many sites use different navigation for each section or even each page.
This is one of the fastest ways to frustrate and confuse visitors because each time they visit a different page, time has to be spent relearning how to navigate the site, and attention is detoured away from the main content. One of the most common ways of providing a consistent navigation structure is through the use of frames. Frames allow parts of your page, like navigation, to remain static through your entire site. No matter where a user goes, they will always have access to the same navigation tree. Of course, you're not limited only to the use of frames.