What we need is p2p social networks. Huge potential in the tech and it 'just' needs polishing. Salmon protocol for comment threads for example is way more powerful than what we use today (it publishes comments across subscriber networks so you could have a conversation being pieced together across separate social networks). Maybe if some big users with a lot of early adopters like reddit and HN got behind that as a movement and started adopting the tech we would see some traction.