Programming

• Hardhat - Ethereum development environment for professionals.

Programming

• Eth Fiddle - Online editor for smart contracts.

Tutorials

• Full Stack DApp Tutorial Series - Full stack DApps using various frameworks.

Code

• Flint Documentation - Experimental contract orientated language for Ethereum.

Blockchain Utilities

• Enjinx - Ethereum block explorer, that also nicely visualizes assets and tokens.

• Blockchair - Multi block explorer with nice charts.

Protocols

• Swarm - Swarm is a distributed storage platform and content distribution service.

Misc

• Ethereum Wiki Page

Official

• Ethereum Foundation

Protocols

• zk-SNARKS - Verify knowledge of a secret without revealing it.
  • Introduction to zk-SNARKS with examples - A practical overview of zk-SNARKS.
  • A practical beginner's guide to creating, proving, and verifying zkSNARKs (⭐270) - Introduction to zk-SNARKS and implementation as a smart contract.
  • zk-SNARKS: Under the Hood - Technical explanation of zk-SNARKS.
  • zk-SNARKs in a nutshell - Technical explanation of zk-SNARKS.
  • Practical zk-SNARKs for Ethereum - A short and practical introduction to using zk-SNARKs.

• Token Bonding Curves (TBC) - Mathematically sound price-supply relationship curves.
  • Bonding Curves Explained - A thorough introduction to TBCs with code.
  • Token Bonding Curves in Practice - Exploring a universal distribution of IP via non-fungible tokens and curation markets.
  • Bonding Curve Playground - An interactive bonding curve webapp.

Documentation

• GitHub Wiki (⭐15k) - Ethereum wiki covering all things related to Ethereum. The go-to place for all things.

• Whitepaper (⭐15k) - Non-technical introductory description of Ethereum.

• Yellowpaper - Technical description of Ethereum. Technically outdated, but interesting.

Programming

• OpenZeppelin - Battle-tested framework of secure, reusable smart contracts.

• Truffle Framework - Development environment for blockchain applications.

• Ganache - Personal Ethereum blockchain to run tests.

• Remix Online IDE - A useful in-browser IDE that can compile and publish smart contracts to various Ethereum networks. Includes a linter.

• Embark Framework (⭐3.7k) - Framework for serverless Decentralized Applications using Ethereum, IPFS and other platforms.

Videos

• Ethereum YouTube Channel - Mostly older videos of Devcon 1 and before.

• Ethereum Foundation YouTube Channel - Most up to date events and streams including the Ethereum Devcon conferences and dev meetings.

Misc

• ETH Gas Station - A tool to check the current price of gas for transactions.

Protocols

• Whisper (⭐15k) - A communication protocol for DApps to communicate with each other.

• Web3.js (⭐16k) - Ethereum's JavaScript API.

Books

• Mastering Ethereum (⭐16k) - A developers guide to the operation and use of Ethereum.

• Introduction to Ethereum and Solidity - Learn Solidity development from concept to deployment.

• Ethereum: Blockchains, Digital Assets, Smart Contracts, Decentralized Autonomous Organizations - Learn about Ethereum (and blockchains) from an IBM blockchain liason.

Official

• Ethereum GitHub

Protocols

• Casper (⭐15k) - Proof of Stake Implementation.
  • Casper CBC - Correct by Construction for full Proof-of-Stake.
    • Code Repository (⭐228) - A python implementation of a class of correct-by-construction consensus protocols.
    • CBC Wiki (⭐228)
    • CBC Research Paper (⭐1.5k)
  • Casper FFG - Friendly Finality Gadget for PoS validation with Proof-of-Work.
    • Code Repository (⭐683) - The FFG contract, related software and tests.
    • Casper the Friendly Finality Gadget Paper - Research paper detailing FFG.
  • PoS FAQs (⭐15k)
  • FFG vs CBC Comparison - A Stack Exchange comparison of FFG and CBC.

• Sharding (⭐15k) - Partitioning computational resources so that nodes do not have to process the entire blockchain.

Tutorials

• Various Ethereum & Solidity Tutorials - How to create smart contracts, deploy your own DApps, create tokens, and more — from beginner to intermediate topics.

Tutorials

• CryptoZombies - Learn to Code Ethereum DApps By Building Your Own Game.

• Start Ethereum DApp Development Career - Informal guide to starting developing DApps.

Learning and MOOCs

• Ethereum Stack Exchange - Question and answers about Ethereum.

• Smart contract safety (⭐15k) - Ethereum wiki on best practices for safety in smart contracts.

• Accounts, Transactions, Gas, and Block Gas Limits in Ethereum - Functional description of Ethereum accounts, gas and transactions.

• Ethernaut Smart Contract Capture the Flag - Practice hacking Smart Contracts.

• Ethereum Syllabus - Syllabus to learn Ethereum.

• Cryptocurrency Security: University of Illinois 2016 - Cryptocurrency Security Course.

• Stanford CS 251(p): Bitcoin and Crypto Currencies - Stanford Bitcoin and Cryptocurrency Course.

• Introduction to Digital Currencies: University of Nicosia - Digital currency introductory MOOC.

• Bitcoin and Blockchain Technology: Concordia University - Introduction to Bitcoin and blockchain technology MOOC.

• Smart Contract Best Practices - Security related best practices for smart contracts.

Philosophy

• Making Smart Contracts Smarter - Smart contract security attacks.

• Ethereum Wiki Philosophy (⭐26) - Some of the core philosophies of Ethereum.

• Ethereum Improvement Proposals - Standards for the Ethereum platform, including core protocol specifications, client APIs, and contract standards.

Videos

• Ethereum Explained (22:00) - Introductory explanation to the Ethereum platform.

• A Guide to Building Your First Decentralized Application (37:00)

Blockchain Utilities

• Ethplorer - Ethereum block explorer.

• Etherchain - Ethereum block explorer.

Protocols

• Ethash Proof of Work (⭐15k) - Ethereum's Proof of Work Algorithm.

Misc

• r/Ethereum - Ethereum subreddit.

• Ethereum Worldwide Meetups - Meet up with the local Ethereum community via meetup.com.

Learning and MOOCs

• Low-Resource Eclipse Attacks on Ethereum’s Peer-to-Peer Network

Tutorials

• Learning Solidity Tutorial Series - Building smart contracts with Metamask and Remix IDE.

• End to End DApp Tutorial - Create a gambling DApp using Metamask, Truffle, Remix, React and IPFS.

Tutorials

• Hitchhikers Guide to Smart Contracts - Build smart contracts on Ethereum using Truffle, testrpc and Solidity.

• A 101 Noob Intro to Programming Smart Contracts on Ethereum - Smart contract tutorial with a focus on building up understanding before code.

• Parity DApp Tutorial - 10 part tutorial on how to write DApps.

• Ethereum Builders Guide - Gitbook for building on Ethereum that goes deeper into understanding technical functionality.

Code

• Solidity Documentation - Programming language of choice for smart contracts.

• Vyper Documentation - Experimental smart contract programming language intended to replace Solidity.

Wallets

• MetaMask - Browser extension that can interact with Remix IDE and send transactions to different testnets.

• MyEtherWallet - Online wallet service that interacts with the blockchain and performs several other useful functions.

• Mist (⭐7.4k) - Official Ethereum wallet - Browse and use Ðapps on the Ethereum network.

• MyCrypto - Online wallet service that interacts with the blockchain and performs several other useful functions.

Blockchain Utilities

• Etherscan - Ethereum block explorer with other useful block utilities.

Misc

• Week in Ethereum - A summary of everything happening in Ethereum each week.

Misc

• State of the DApps - A comprehensive list of the Decentralized Applications (DApps) on Ethereum.

Official

• Ethereum Website