It’s a bit late, but I just found out Mark has passed away in Feb. 2014. It was not unusual to go for long periods without communications between us and I was concerned, but not enough to contact his family, and then I found this:
I will keep this website up as long as I am able but I have had no contact with his family and may be forced to shutdown without notice.
Though I was unable to attend his Holiday parties or get together at any conventions for the last half dozen years, I wish that I had been able. I will always remember how great Mark was at reading to a group and it was always one of the high points of any convention I attended with him.
He will be missed,