Whitey - 8:30 am on May 24, 2013 (gmt 0)
I know that got TOTALLY obsessive with cleaning up their backlink profiles got hit pretty badly by Penguin 2.0
@ColourOfSpring - interesting thread here, with a small number of response saying something similar. [webmasterworld.com...]
Looks like a lack of good links can also play into this as the counterbalance. What do you think?