I wanted to warn everyone about this fake online store.
http://www.thebookcellar.com
I ordered a rare out of print book for 44.95 from the site with my credit card. About a week later I received an email telling me that the book I ordered was out of stock, and so my credit card would not be billed. When I got my credit card statement, the charge appeared on the bill. I attempted to contact the site but never received a response. I then noticed that the site didn't even provide a telephone number to call.
Luckily, my credit card company was very helpful; I sent in a copy of the email saying that my credit card shouldn't have been billed and my account has been credited.