I'm working on a decentralized storage solution for personal data. To be fair, it's not actually being used anywhere meaningful but I think it has real value (data ownership / privacy, encryption, protection from client code) and we have a proof-of-concept website that you could test it out on.
I've yet to see those "real things" described and would be interested to see it summed up so I can.
Identity that solves Zooko's Triangle, Censorship Resistant Storage, P2P/Decentralization (separate from blockchain), alternative funding models for all kinds of SaaS and Open Source projects.