Vec_One - 5:47 am on Feb 4, 2005 (gmt 0) I can't see a pattern. It seems random.
My site, which has been doing well for years, was nailed by this update. The strange thing is that some pages are still fine. A few of my week-old pages are doing very well for some pretty competitive terms. Other pages have gone down from #1 to #5 or so. Most have slipped out of sight.
I can't see a pattern. It seems random.