tedster - 4:33 pm on Jul 23, 2010 (gmt 0)
At a stab, the "pre-Mayday" set looks to account for 10-30% of searches, but I haven't seen it directly.
Right on - I'm hopeful about this, and I see something of the same. It's not more than 15% of traffic for my sites.
Whatever the Mayday criteria are, this algo is not ready for prime time. Should be the 10% share, not the 90%