jam2005 - 1:55 pm on May 9, 2006 (gmt 0)

>>>...search traffic has gone up/down by a major amount, and see if there are fewer/more supplemental results for a site: search for their domain...

For at least one of my sites the number of supplemental results has increased dramatically and traffic is about 50% what it was before all the pages went supplemental. This happened in the middle of April.