Welp, looks like big G has finally caught me slipping. I could be wrong as i've never been manually punished but check out what happened to 3 site ive been working on: All three collectively went down over night. The thing that throws me off and I'd love for someone to chime in is that webmaster tools has no manual penalty messages. I choose a greyhat strategy with the above sites and the PBN links are all still indexed. What do you guys think?