Perhaps others have already thought of this idea but here goes anyway. If you have a paper version of a book and wish you could search for terms and phrases within that book, don't forget that you may be able to find the book in Google Books and search for the terms there. You may or may not be able to copy text out of what Google calls the "Preview" but you will at least be able to search for specific terms. Unfortunately, not all books have previews but it is at least worth a try.
The contents of this post is Copyright © 2010 by Grant Sheridan Robertson.