ohno - 8:15 am on Nov 1, 2010 (gmt 0)
What a night, now I remember why I said we will just have one when my daughter was born! OK, to recap, for us traffic & conversions all but disappeared Thursday 21st until 1pm Friday 29th. On Friday 29th conversions came back for around a 3 hour period. This weekend shows traffic about the same as last weekend(not had chance to check location/quality/keywords entries yet)but conversions back to normal. If this was an algo tweak then it had a huge impact on us for a week. SERP's looked the same to me throughout that period, I have noticed the one box results seem to be shifting position a lot more though? Sometimes at the top and others half way down the page. One thing is for sure, a roller coaster week ahead, even if not down to Google!
ps, one other issue i notice is when we are busy our forums have LOTS of spam user regitrations, these were all but gone last week as well. It's like when traffic is gone/junk/sales conversions gone even the spammers can't find the site!