It's not just about making everything available in 'three clicks'...although we would recommend that as a good starting principle!...
Usability is a crucial part of design, ensuring that people can find what they are looking for and perform actions on your site quickly and easily. The average user will not spend more than a few seconds looking at a site for what they need before moving on. It's therefore very important to make an impact in that time and satisfy the user's need.
Spectulise can help your site do this in a number of ways including highlighting areas of interest, developing intelligent navigation systems, clean consistent page layouts and ensuring that the user knows where they are in the site at all times. Sticking to standard design principles means that a user will instinctively know how to use your site, rather than having to learn it from scratch.
Features like site maps and enchancements such as search boxes and helpful error messages can all aid the usability of a website.