I just thought I would toss in a plug for a site I found. I honestly don't know if the rules say I can't, but there are a ton of Trek books on there, so I thought it might apply, and help out those that are financially challanged. Paperbackswap.com. I use it, and have already improved my Trek and sci-fi collection greatly. If I have violated a board rule by posting this, I sincerely apologize.