When reviewing my blog last night, I noticed that a number of posts have suddenly vanished. It looks like a serious TypePad problem (I have started a ticket describing the problem and am eagerly awaiting their response). Missing posts are a pretty poor show when you consider that visitors might arrive here via a search which hits a permalink. The graph for 'typepad' and 'typepad problem':
The peak on July 2nd relates to a change that TypePad made to templates which messed everyone up - I wonder if my problem is related.