Yes, I see the bug in the way the categories are displayed at the bottom of each post; Usually, in the header of the following post.
The problem apparently has to do with a plugin I added over the weekend, involving automated generation of Technorati tags. Didn’t notice it before now, because of the variable way the bug manifests itself. Annoying, but I can’t fix it from here. I’ll have to repair it tonight.
Update: Got it. Return to your lives, citizens. Nothing to see here.