First, many thanks to everyone who takes the time to comment. And my sincere apologies to anyone who has tried to comment recently, but received an error message. The problems are supposed to be fixed by the end of the week.
Scheduled down time for maintenance: tonight (8/23) from 7 to 9 pm EDT, and Thursday in the wee hours of the morning, from midnight to 2 am. During those times the blog will be offline.