Thanks to a heads up yesterday from Jed, I discovered that my site (or at least the comments theron) had been vandalized by online gambling spam...So I had to turn on comment moderation for the time being until I figure out a better way to stop the spam. I'm guessing that the spambots post directly to the main comments script, so the fix may be as simple as renaming that script. We'll see. So...when and if your comments don't show up immeadiately, don't fret. They'll show up eventually.