CodeCrafters - Programming exercises for experienced engineers.
Cryptominded - Where you learn more about cryptocurrencies
Toools - Toools is a searchable and filterable list of over 300 web3 tools specifically for creators, developers, and DAOs.
useWeb3 - useWeb3 provides a curated overview of the best and latest resources on Ethereum, blockchain and Web3 development.Resources to help on development of your smart contracts, DeFi projects, ERC20 or NFT tokens in Solidity or Vyper.