Official: Selling Paid Links Can Hurt Your PageRank Or Rankings On Google  —  More and more, I’ve been seeing people wondering if they’ve lost traffic on Google because they were detected to be selling paid links.  However, Google’s generally never penalized sites for link selling.

Source:   Search Engine Land: News About Search Engines & Search Marketing

Author:   Danny Sullivan

Link:   http://searchengineland.com/071007-173841.php