asusplay - 11:05 am on Jun 5, 2010 (gmt 0)
One of my sites actually experienced a downwards trend beginning June 1/2 where it lost many of the long tail keyword traffic that it used to get. The site was almost unaffected from the May update, traffic down by about 50% since June 2.
Whitehat site with lots of useful unique content. Not sure what to do right now.
Same thing happened to me. I started to see a slight decline in traffic around the 31st May, but nothing out of the ordinary and in the next 3 days a steady decrease so now it is half what I used to get. I have noticed most of the log tail phrases my site used to get hits for are no longer there in the stats.
No sure what to do now but sit and wait...