ken_b - 6:02 pm on Feb 23, 2012 (gmt 0)
The only explanation so far was a sort of Panda-inducing degradation of user engagement metrics, but that seems like a long shot.
I've already been beaten to death by Panda, can't imagine this could make it much worse.
This is hitting my homepage only, normally a very low traffic page. Most of my traffic enters on other pages.
Just for reference, my site is totally static pages, all hand built one at a time, by me.