I've always loathed captcha's, and they've gotten progressively worse. But I've noticed some blogs seem to do reasonably well with just a single static word, presumably because most spammers won't customize things for a single blog unless you get a lot of traffic.
I also have a soft spot for an ...
It is more than a little bit depressing that after a two year hiatus, I still see hundreds of hits a day to my old Movable Type comment and trackback URL's (that helpfully only returns 404's now). The question is of course how soon someone picks up on my new comment ...