For those of you looking for content from the old site, it is still available, though I will be moving the content into the new site soon.
I finally had a chance to look at it today, and have built a simple page that searches Amazon.com for books about ASP.NET. You could see it, but I broke it.
The webservice looks like a good start, though there are some things missing, such as a product description. However, I could see this being used by someone who is an Amazon affiliate, like myself, to display a list of books to their visitors. Taken a step further, I might look for visitors coming to my site from search engine sites, get their search terms, and display a list of books based on those terms. I nice personalized list of books reflecting whatever it was that drew the visitor to my site.