I have been happy with MT-Blacklist. I have had no comment spam since I put in some common key words to block. I have noticed that more trackback spam seems to get through. I installed MT-Moderate, which seems to do a great job moderating trackback spam. Sometimes I would get 20 trackback spams a day, and while that is nothing compared to what larger blogs must get, it was still a pain to deal with. The last time I opened up Blacklist, I noticed a new item posted under “Blacklist News.” Brad Choate has come up with a brand new plugin called SpamLookup. If you manage your content with Movable Type, you should definitely check it out. If this works like it should, spam should be a thing of the past. If I haven’t convinced you, go see what Jay Allen had to say about it.