General Background

The search phrase is "P2P cloud storage".

Wikipedia entry.

Live Projects

NexentaStor, storj.io, Space Monkey, CloudFleet, bluzelle, Holochain(GitHub account),

Coral Content Distribution Network, Freenet, Cryptosphere, 

Outernet is a WiFi router that serves pages that have been saved from a satellite stream(keywords: Lathern), 

I2P, Netsukuku WiFi network, RetroShare, OneSwarm, 

Ceph(probably needs serious security related work before use),

The Free Network Foundation (Introduction) 

Conquelicot (archival copy of the introduction), coquelicot-0.9.5.tar.gz, .asc

InterPlanetary File System (IPFS), Storj, Blockstack,

ZeroNet, BigchainDB, Nextcloud, Hermivore, 

WebTorrent (is decentralized, but lacks anonymity), 

Syncthing, Vuvuzela(paper_1), Ricochet, Dissent,

Aqua/Herd Project (paper_1, paper_2, 2016_09_02_src, deployment_grant_summary, local_copy_of_deployment_grant_summary),

Cloudy(archival copy) and its origin (archival copy), 

CATS (archival copy),  guifi.net (archival copy), Serf, 

Decentrify(archival copy), MaidSafe, Freifunk (archival copy), Sia(archival copy), 

GitTorrent(archival copy) , Infinit, Keybase, Beaker, matrix.org, 

Ring(ring.cx), Secushare, Tent(archival copy),

Freedombone, SpoVNet, WING, SMesh, Project Byzantium,

Open-Mesh(B.A.T.M.A.N./BATMAN), 

StealthNet, Pastry, distributed.net, Askemos, 

invisibleNET, MANET, Serval,

Failed or Otherwise dead Projects