I was wondering the same thing dunivan - we were getting a lot of halloween referrals before the day up until this weekend. Then traffic was lower Sunday and Monday
My update is this - traffic Tuesday was up over Monday, which is unusual - Monday is usually our biggest day. There are only a handful of sites that are higher week-to-date when compared to the same period last week. Most are down, but in general the losses are small. From 1-2% on some sites to around 10% on others. But if this upwards trend continues today we should be back on track by the end of the week.