Ethereum

General

• Ethereum, Learn
• Solidity
• Ethereum Grid
• Ethhub, docs

Networks

• Etherscan
• Ropsten
• Rinkeby
• Kovan

Technologies

• Quorum
• Swarm, github
• IPFS, github

Operating environment for the new internet

Ethereum API | IPFS API Gateway | ETH Nodes as a Service | Infura

JavaScript

• Ethereum for JavaScript Developers
• web3.js
• Truffle
• ethers.js
• EthereumJS