ALTERED BOOK RESOURCES
What is an altered book? 
Techniques & Book Ideas (a good place to start)
The Altered Book: an online resource for the altered book artist
Suite 101 (hint-scroll down for article)
Altered Book Tutorial from Creativity Portal
How to articles from Lisa Vollrath
Examples of Altered Books:
Altered Book Gallery from Karen's Whimsy
Altered Book Artists:
Altered Books - the International Society of Altered Book Artists
Find copyright free images for your Altered Book