freejung - 10:43 pm on May 18, 2010 (gmt 0)
This exception to the forum charter is a great opportunity to gather data.
Yes, mrez74, I think you've hit the nail on the head. We're seeing radical fluctuation between two (or more) sets which would cause the kind of traffic discrepancies you're seeing. I'm not seeing that, but as I said, in my niche there seems to just be reshuffling of the top results, not these radical shifts.
Generally this sort of thing doesn't last long.