Blockstack - New Internet for Decentralized Apps.
Cleargraph - Multi-purpose GraphQL runtime for decentralized applications (dApps) and wallets.
Lux - Hybrid PoW/PoS & Unique PHI2 Algorithm | Masternode | Parallel masternode | Segwit | Smartcontract | Luxgate | Proof of file storage (Decentralised distributed file storage).
ProtoSchool - Interactive tutorials on decentralized web protocols.
Decentraland Marketplace - Fully decentralized and open market where you can discover, buy, sell, and manage your parcels of LAND.
ditCraft - Dit is the decentralized git. Distributed and democratic governance for software projects.
Misskey - Federated blogging platform.
GUN - Realtime, decentralized, offline-first, graph protocol to sync the web.
SAFE Network Primer - Introductory guide to the world's first fully autonomous data and communications network.
cjdns - Encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing.
Yggdrasil - Early-stage implementation of a fully end-to-end encrypted IPv6 network.
AutoDapp - Instantly decentralize your web app.
Everest - Universally shared projects registry.
Infura - Ethereum & IPFS APIs. Develop now on Web 3.0.
Aragon - Gives internet communities unprecedented power to organize around shared values and resources.