PBN = Private / Public both Most of public networks are shit and low cost as well , that works well for small churn and burn projects . For your good strong projects where you can't take risks , you have to spend good budget buying quality PBN Links (Private ones) by spending more or creating your own PBN . It really depends on your budget and project . If you are paying 5$ per post and you think its private and not spammed to death then you are day dreaming . For quality links you have to spend more . I am not going to say what and how i work on my PBNs which i sell and which i use for my own sites but i know alot of Sellers (Most of them are not on BHW though) who have a decent PBN and they charge 100$ per link . And when you are spending 100$ per link then you are getting very high quality link with just 4 or 5 OBL and that thing really works .