recommendation and a comment
I didn't see any mention of the new single-use credit card numbers.
I was very annoyed with the first recommendation. The author implied that any online vendor smaller than Amazon is untrustworthy and that they should be avoided. I wouldn't dream of cheating or otherwise abusing one of my customers. My site is properly encrypted even though my shopping cart passes control of the transaction to PayPal before credit card numbers come into play. All that I ever see is PayPal's limited confirmation details; I never see a credit card number. In addition, I offer payment options for those who prefer to use checks or money orders.
I've completed numerous transactions with both very large and very small online vendors with no credit card problems. The occasional minor problems always seem to occur when I deal with large corporate sites. In sum, don't hurt the little guy with idiotic sweeping generalizations.