sean22 - 5:05 am on Jun 6, 2010 (gmt 0)
I saw roughly a 60% drop. These were an array of long tail Kws that were not related to my trophy KW. Very good Kws that I thought Google didn't want me to rank for. I really don't know if all of them have returned yet but I am seeing traffic and serp ranking for some of these Kws that I haven't seen since April 28th. I am also seeing pages that disappeared altogether now bringing in very long search terms that just come naturally. I relied on those pages for a while and since April 28th they very non-existent.
What I'm trying to say is my pre-April 28 ranking spots for these long tail Kws are on some data centers and so are the pages. Example Tennessee (whichever data center that belongs to).
I am aware of Caffeine rankings but since April 28 the rank of these Kws tanked across the board. Google UK, Google.com and I searched through proxies, but now the pre-April ranking is coming from certain DC and hopefully more are to follow.
Something is up.