ponyboy96 - 4:58 pm on Feb 25, 2011 (gmt 0)
One of my client sites got whacked with this yesterday, 50% traffic loss from Google. Looks like about a -50 in rankings for affected keywords. Used to rank on the first page for most terms. I just saw it today in the analytics and now I'm having to scramble just to keep my job. Way to help the unemployment rate there Google.
We're talking a very trusted site that has been around forever. Good content, good user experience, decent traffic, etc... Not a spam site at all or a content farm. Complete white hat SEO tactics, I mean down to the letter with 0 link building efforts. All the big boys are still there though.