Google announced that starting June, it will ban all crypto related ads. Facebook also recently banned ICO ads on thier platform. two of biggest tech companies: Duopoly. I think this is creating an opportunity for real decentralized platforms for crypto and blockchain related stuff.
Well for your information, currently Facebook has announced the reversal of the ban of crypto ads but i don't know of google though. Maybe it would also reconsider its decisions looking at how big the crypto market is.