I've been somewhat overwhelmed by a lack of time and a need to write many things, and the result is, I had to take a moratorium on e-mail correspondence for a while. And, er, the moratorium isn't entirely over, though I do make belated attempts to answer a letter every now and then. So if you don't get a reply till six months after you write, that's the reason.
Please be assured, though, that I love getting mail, and every letter is read and thought about. (I enjoy those comments in the Guestbook, too, and pull them out when I get depressed.)
If you want to know a bit of what's been keeping me so busy, check out the "What Are You Doing Now?" page. (You can go straight from here, or you can find it and other things in my biography section off the Table of contents - "My Life And Strange Times.")