Reno - 2:48 pm on Sep 27, 2010 (gmt 0)
wouldn't the high peak be degraded over a year or so because of 10,000 new websites being added
As drall and others have reported, this does not seem to be an across the boards phenomenon, rather, some sites are targetted and some see normal fluctuations. I see the same level (+/- 5% almost every day) at a few of my own URLs, but not at others. Figuring out WHY that is happening may give us a clue to Google's rationale, which may lead to HOW it is happening. So far, drall's reporting re some keywords going up and simultaneously others going down ~ thus resulting in a flatter line ~ is the most compelling.