Written by Dominique Catabay
Google's manual actions team sent out penalties for "unnatural outbound links" over the weekend. Doing this allows sites to cheat the Google ranking system. Sites that were accused of taking part in the behavior were sent the following message:
If you see this message on the Manual Actions page, it means that Google has detected a pattern of unnatural artificial, deceptive, or manipulative outbound links. Buying links or participating in link schemes in order to manipulate PageRank is a violation of Google’s Webmaster Guidelines.
As a result, Google has applied a manual spam action to the affected portions of your site. Actions that affect your whole site are listed under Site-wide matches. Actions that affect only part of your site and/or some incoming links to your site are listed under Partial matches.
Google is punishing these sites by no longer trusting any of their links. If you received the message, you can fix the issue by following the instructions published by Google here.