The black hat and gray SEO communities are buzzing about Google’s latest efforts to target PBNs, Private Blog Networks. Over the past couple days, Google has reportedly went after many PBNs that are being used to manipulate their rankings. Google has sent out hundreds, if not thousands, of manual action notifications to those participating in these networks. Bill Lambert posted a comment on this blog saying there is a “massive private blog network update going on.” He added this is a “complete slaughter fest.” BlackHatWorld has comments from some of those who lead PBNs, obviously trying to downplay the impact but they do admit it is going on. Alex from on PBN wrote in the thread: Yes, I’m aware of the current wave of PBN …

Excerpt from:

Report: Google Severely Hits PBNs (Private Blog Networks)