That was me. You see my web hosting provider, Powweb.com, is in the middle of migrating to a new server platform. And Monday was my migration day. I tested everything thoroughly, but when I flipped over to the new server, this blog ended up partially broken. Partially, because you could still see the current posts and all the links. But broken because you couldn’t leave or even look at a comment or any of the posts not displayed on the first page.
However, thanks to the great support forum at Powweb, I found the answer and we’re back.
(Update: I’ve now solved the remaining mystery, about why Day By Day wasn’t displaying. It was a different, but related problem involving the new server configuration.)