petehall - 4:00 pm on Mar 23, 2012 (gmt 0)
tedster there seems to be absolutely no pattern, which is the scary thing. And has only really affected a single site that I work on.
Even stranger is enquiry levels are perfectly normal! I thought traffic was down about 30% but it was just a quiet morning I think.
It seems people are still finding this site and making an enquiry regardless of the positions, which have dropped a fair few places. Where the site was position 1-3 it's often 5-10, with very random sites occupying the space above (by random I mean different companies on different search phrases - no consistency - none of which appear to optimise for the phrases either).
There is one pattern and that's for the past few weeks I have seen these results on a Friday, then it rectifies around the beginning of the following week.