I had written something a while back on IA using jQuery for the purpose of a book. The book is in hibernation, but I am fond of the content. It shows how to use IA techniques and jQuery to make your user happier and more productive.
http://www.commadot.com/book/UX/UX-Tabs.pdf I'm not looking for feedback to make it better, but I thought it might be helpful to someone. :) Glen posted at http://commadot.com