Amazon.com now offers RSS feeds, based on tags that you choose. You can then aggregate these feeds to your site, and even keep them as affiliate links, if you’re into that kind of thing.
See: RSS web feeds for tagged products (syndication)
Three books I need to own:
Creating Database-Backed Library Web Pages: Using Open Source Tools — Stephen R. Westman
Because these are exactly the sorts of sites I want to, and will likely be able to, make.
The Wisdom of Crowds — James Surowiecki
Because this book is mentioned so often it has nearly become annoying, but I suppose I should read it anyway.
Ambient Findability: What We Find Changes Who We Become — Peter Morville
Because in the world of federated searching, findability is a more interesting topic than ever.