I've recently started getting a large number of spams with the subject "CC dumps for sale". I'm guessing that this means that they're offering credit card numbers in large numbers.
They accept payment with bitcoin, and they give an icq number for contact. The emails are being sent out by a botnet.
Hopefully, there's police authorities also getting these emails, and they'll do something about it. I don't have much hope of this, though.
Another (perhaps related) mass spam is "Employment", offering a post as "Internet Manager". This is, of course, looking for money mules, to launder the money that the scam collects.