pdivi - 1:07 pm on Jan 8, 2010 (gmt 0)
Same thing here. As of this morning, I'm missing from half the list of 10 or so key phrases I track. I used to rank #20-#50 for most of the missing ones. My fist page phrases are still ranking the same. I checked through 1000 results suspecting a -950 penalty, but I can't find my site anywhere.