Spam Fighting Update
A few weeks ago, I installed Movable Type 3.2. One of the supposed big enhancements was improved tools for fighting spam in both comments and trackbacks. At the time, I wasn't sure how well it would work, but after a few weeks, I can say that this system is great! Not a single spam comment or trackback has made it through (several hundred attempts were blocked) - and this is with almost no configuration on my part (much better than MT Blacklist on all fronts). This is mostly due to the inclusion of the SpamLookup plugin in the release. If you run a Movable Type blog, I highly recommend upgrading to 3.2 or at least installing SpamLookup.