A Website storyboard is a visual representation of your website's structure. It maps out all the components of your site and how they inter-relate. Creating a website storyboard can help you plan and organise your website and even plan the internal linking structure between pages. Using a storyboard you can plot a visitors path through your website to find your most important pieces of content.
A typical website storyboard might look something like this:
The elements you see in the image can either represent high level subject areas of your site, or they can represent individual web pages. The arrowed lines connecting each are the hyperlinks that allow visitors to navigate between them