A WebmasterWorld thread has a webmaster sharing a notification message he received via Google Webmaster Tool. The interesting part is that this notification is very specific that although the site has a penalty, the penalty is only being applied to a specific page or section of his site.
Google said the penalty is “very targeted action to reduce trust in the unnatural links,” but not in the other links pointing to the site. Google said they took “very targeted action” because they know these “links may be outside of your control” and thus don’t want to penalize you for that.
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