The internet is growing in users (http://www.internetlivestats.com/internet-users/) and sites (https://news.netcraft.com/archives/category/web-server-surve...) BUT this growth means most of it goes to Google and Facebook (see case Latin America: https://www.sandvine.com/resources/global-internet-phenomena... and https://blog.parse.ly/post/2855/facebook-continues-to-beat-g...). Basically the internet grew about 7% in users from 2015 to 2016, but FB/G mobile traffic share in Latin America grew 16%. It's hard to get better statistics, but the statistics we have point to indeed a FB/G domination.

As for cryptocurrencies, as long as they are dependent on ISPs, they aren't actually decentralized. They're quite vulnerable, and the only way out is to not depend on ISPs or the whole wired internet to be honest. Blockstream is a good way forward.

Basically, the new decentralized web must be wireless-first: http://ssb.staltz.com/view/%25a1xQAO6/UCC370Cq+HcWjEni1ziXH+...