SnowMan68 - 3:40 pm on Jun 7, 2013 (gmt 0)
Late on the 22nd they rolled out the Penguin update. I wonder if that's what affected you the first time. It looks like the sites who took further drops (this week) in my niche were originally hit by Penguin 2.0, but not as hard as I expected them to be. This recent rollout makes me wonder if they tweaked the Penguin and reran it. The sites I followed that avoid complete disaster last round got hit much harder this week.