I think this is a very interesting article on Spam, because it addresses the issues about how much Spam actually costs companies. I'm not doubting that Spam costs companies quite a bit of money, but I've always thought that the statements of just how much it costs them were over inflated. This seems to be a practical article addressing both sides of the coin, and the first to honestly assess what it costs to the Spammer to send email.

So many articles make allegations that it costs next to nothing for Spammers to send Spam, and they are quite wrong. There are different tiers of Spammers and different cost brackets for each. You can't lump them all into the same category. Some spammers spend _millions_ on delivery of their email. Some use dial-up connections and actually don't last very long.. nor do they make very much money.

Diverging Estimates of the Costs of Spam