As David prompted me, it really was time to enable trackback on this blog. Unfortunately, Blogger does not offer this service, so I had to install HaloScan, a free commenting and trackback service. It's easy to do, but when you comment on this blog, it will pop up their window, instead of blogger's with some annoying advertising underneath the commenting window. At least one of these ads, I felt, was offensive. So ignore that, please.
I really do need to get my blog hosted somewhere where I can use Wordpress ... I just need to get around to doing it.