So apparently I got hacked somehow. Not sure what happened, but someone found a way in to my WordPress installation and started using it to serve spammy ad links. I’ve rooted out the problem and installed a WP security plugin that will watch for and work to prevent future attacks, so hopefully this won’t happen again.
As a minor note, anyone who’s left comments on here, someone might know your email address now. Aside from that, this shouldn’t cause any problems for my readers.