I came across the site for Designing for Interaction just now. The book sounds like a great idea, but I seriously hope that the web site was not designed by the author(s). I had to ask if I was on a new page or not a number of times since they all look alike. The site also fails the following quote from the Luke Wroblewski interview:

Similarly, many designers will over emphasize the differences between individual interface elements through multiple visual relationships: different font, size, color, and alignment. You don’t need excess visual contrast to distinguish objects or make things findable. Think about ways to “eliminate the unnecessary so that the necessary may speak” and aim for the least effective difference between elements.

Or the web designer was to afraid to emphasize anything.