Starting last Friday, Typepad (the blog service I use) has been having some problems due to DOS attacks by cyber-miscreants.  Fortunately, this blog has remained on-line almost the whole time (some other blogs that use Typepad disappeared for a couple of days!).  Earlier in the week, I was unable to post anything new for several hours at a time.  Today, the comments appear to have gone missing–fear not (or fear, as the case may be), they will return, and they still exist (when I log in, I can see them).  Hopefully the FBI will catch the cyber-miscreants, or Typepad will improve its defenses, and everything will go back to normal soon.