This web site was created by the authors to contain support materials for the text. Materials solely for instructors can be found at our Publisher's site http://www.wiley.com/college/knuckles. The Web extended chapters of this book (14-19) are also available at our publishers site. New copies of the text contain a card inside the front cover giving a code with which to access those chapters. This site contains things like links to executible versions of the examples, compressed archives containing the source code for the examples, PowerPoint overviews of the chapters, and various other resources to support the text.