Buyer Beware:
Here's a cautionary tale from someone who ""bought"" what was advertised as a list of users of ERP software. You've probably all received these emails advertising thousands of names, emails, etc.
Via the Sage LinkedIn Group:
I regret to say that I am a victim of this scam. After processing my credit card payment, he sent me a file consisting of random names and addresses (nopt necessarily business names) which are obviously useless. I complained unsuccessfully to my credit card merchant bank. He claimed he had sent the list and (because the bank couldn't understand the distinction) he won the argument. Buyer beware!