Comment Spam: The Blacklist

We are entering dark days. Not only is it possible that George W. Bush will be elected for a second term--but comment spam is wreaking havoc on this blog. In the last 24 hours, I have received more than 60 comment spams. The volume of spam is so large that my original blacklisting solution is becoming unfeasible because it is too high maintenance. For the past several months I have been blocking certain IP addresses which have been spamming me. With the volume of spam at 10-20 comments/day, this plan may require too much vigilance.