Basics

Blockchain basics

Bitcoin paper

Proof of stake video

Hash wiki and hash function

Timestamp of a digital document

Exchanges

latoken

uniswap

hitbtc

FTX

Binance

Tools

Ether.js

Web3.js

JavaScript's encryption library

Tracking and trading tools

BTC memory pool explorer

Track your portfolio over multiple accounts

Unconfirmed BTC transactions

BTC charts

Blockchain visuals

ETH

Beacon Chain explained in a YouTube video

Staking explained

ETH Blockchain language Solidity

Hardhat and a medium article

ETH developer Links

Solidity dev environment

public test nets Rinkeby, Ropsten

ETH dev workspace

VS Code remix extension