I've received a couple emails from friends who tell me they weren't able to comment on my blog. Evidently, I fiddled too much with the layout and must have screwed something up. For whatever reason, the comment box vanished. I think I've managed to get it back now. Let me know if you have trouble.
And BTW, any other suggestions you might have to improve this blog will be gratefully considered. I'm SO new at this.