Let's say I have 3 authority sites and I want to use 2 of them to bump the third one. Can I create FB fanpages to them all with the same account? Also, the content on every site is high quality and unique, is guest posting (with do-follow links) on my own sites considered cheating? And if not, can I use same adsense account on all of my authority sites? I think this would be possible red flag for G to find my PBN and the whole pyramid scheme with which I would promote these three.