<p>“You know that the text book lobbyists have something to do with that…electronic books could put them out of business pretty quickly, and they are not going to let that happen.”</p>
<p>gigapedia.org</p>
<p>Not only are the books electronic, they’re free. (You have to sign up, but it’s free to sign up). I would think $20 is better for them than $0…</p>