Alex997 - 2:36 pm on May 23, 2013 (gmt 0)
Holy plummet Batman!
Pretty much all keywords have dived from top of page 1 to page 3+. Average ranking across 30 high KEI keywords was about 10, now averaging around 35 mark.
Don;t do anything blackhat - dont pay for links - have great unique content on the site - have good-looking backlink profile - no warnings in Google Web Master.
Hopefully we are just the first to drop and everyone else will catch up soon!