Did anyone else see a return to January levels yesterday? We had a very good January, but then like has been noted on about the 29th things went south (about 25% down for us). Stayed that way and even got a little worse - and then yesterday CPM was up right around 30% and about to where it was for most of January. It does seem a little strange there can be that much fluctuation in one day when my site has such a stready stream of users/page views, etc.