johnhh - 12:04 am on Sep 20, 2011 (gmt 0)
Nothing here in the UK that I can see. However lost some more traffic in mid-August. Seems to a pattern over the last few months, get hit, slow recovery, then get hit again. Normally preceeded by a larger than normal googlebot crawl. In our WMT after each hit the number of impressions per day always becomes a straight line - if that data can be believed of course.
I thought I had Panda worked out last night after a few drinks - now I'm sober I can't remember what it was !