Planet13 - 9:57 pm on Feb 24, 2011 (gmt 0)
Overstock was penalized for having great rankings and a brillant marketing effort.
- Provided an affiliate program anyone could join.
I don't know if it is in the google TOS, but I am pretty sure there is a google webmastertools video out there that says if you have affiliate links pointint to your site, be sure to nofollow them.
I apologize if my memory is wrong. But I am PRETTY sure that is what he said.
So while it is a brilliant marketing effort, I can't help but imagine that many of the links were devalued because they were affiliate marketing links.