johnhh - 1:38 pm on Aug 31, 2012 (gmt 0) [edited by: johnhh at 2:25 pm (utc) on Aug 31, 2012]
We see the same, started yesterday and the same downward drop again today.
Seems many others are seeing a similar downward shift again
Looking back to 2011 we had the same drop on 30th August then, although that was a Tuesday.
Perhaps there is a Google end of summer mode.
[edited by: johnhh at 2:25 pm (utc) on Aug 31, 2012]