Hello Everybody, First of all Disclaimer: I am not a person who is tries to create unnecessary fears, just a practical look at the situation. I am not afraid of seo updates, nor am I saying that SEO is dead or PBNs are dead. Its just my thoughts about how Google can kill PBNs in the future. Now the real stuff: I asked myself the question, what would I do to stop PBNs if I were Google? Ans: Stop giving any weight to any outbound link on any website raised from the dead (i.e. expired & deindexed and created again) for specific period of time i.e. say six months. This strategy will effectively stop PBNs without affecting any person who uses any expired domain to make a valuable site as the site itself will be able to rank but its outbound links will not count for some random period of time. So if the site is made purely for link building it will loose it purpose. Short & Simple, thats it. Now ready to take the blows.