If you were a customer of eBookMall,com then you might want to look for a new ebookstore. The site has somehow come under the control of a scammer of unknown origin.
The site looks normal at first glance, bur if you visit a book listing you will find that the buy buttons have been replaced by a button that says "read for free".
If you click the button you will be redirected to, well, I'm not sure what site it sends you to. My security software will not let me visit the redirected site, and I am going to err on the side of caution just this once.
If you happened to click that link, do yourself a favor and run a security check on your computer. And if you gave them your credit card numbers, call the credit card company NOW.
I don't know what they are doing on that site but it clearly isn't safe.
MobileRead (Thanks, FBone!)