AG4Life - 8:10 am on Jun 5, 2010 (gmt 0)
One of my sites that was worst affected by the May 17th event (not so much by MayDay) has recovered (for now) to pre May 17th levels, at least for Google referrals. The recovery started around May 30th. Interestingly, non search engine referrals are still down about 6%, with most referring sites giving less traffic to my website than before May 17th. Maybe this is just a coincidence, or perhaps it's showing that other sites still haven't recovered from whatever it was Google decided to roll out.
The same site that I posted about above seems to have gone back to *post* May 17th numbers again today, ie. the bad set of numbers. No changes have been made to the site throughout May and June.
On an (maybe) unrelated note, one of my forums (vBulletin) has just had a huge Google crawler spike. Up from the usual 6000 per day to 22000. This forum, like many other forums, has seen Google referrals drop through the floor, so I'm not sure whether this signals the start of something better, or the start of something even worse. The "site:" result for this forum recently went from 30000 (steady for the last two month), to 20000 for one day, and then all the way to 44000 now, all in the last week. I did notice that the number of indexed pages listed in GWT dropped from 90000 to 50000 just recently though.