Andy, I can tell you some of the queries I mentioned here and some others I did not? They've had mega changes in the last 36 hours. So the example I gave here that was a total disaster now has relevant results but again filters still seem to be missing as all the top results are mirrors for the same organization. But, it's far better than what was happening.
Google may never admit this but they've obviously either decided to pull back some of the changes or are rolling out new ones. Either way what stuck in my side about this was the idea that this was a set of data they were happy with and that it passed a committee. IMO, the committee didn't do enough real searching and in the future for such a massive change Google should enlist thousands of volunteers/contractors that sign NDA's or whatever because this time they blew it terribly.
For our particular site yesterday to see the trend totally reverse in one day in terms of searchers not only using google more but the demolishing of the yahoo/bing upward swing tells me in a lot of the B2B trade search consumers may still have been using Google first, but were going elsewhere when they didnt find what they wanted. Starting yesterday when they were able to find relevant terms on the first page the traffic from yahoo and bing slowed.