Lido DAO is a community that builds liquid staking services. Lido allows users to earn staking rewards without locking assets or maintaining staking infrastructure. The smart contract then stakes tokens with the DAO-picked node operators.
Lido Ethereum Liquid Staking
The Lido Ethereum Liquid Staking Protocol is built on Ethereum 2.0's Beacon chain, It allows users to earn staking rewards on the Beacon chain. Users can deposit Ether to the Lido smart contract and receive stETH tokens in return. Users' deposited funds are pooled by the DAO, node operators never have direct access to the users' assets.Currently steth's main usage is on the curve pool.
Liquid Staking for Terra
The Lido Terra Liquid Staking Protocol allows its users to earn staking rewards for their staked Luna. Users can deposit Luna to the Lido smart contracts and receive stLuna or bLuna tokens in return (see below for the difference between the two tokens). Currently staked Luna’s main usage is on Anchor,
stLuna and bLuna
Both stLuna and bLuna tokens are liquid, tokenized representations of staked (bonded) assets on Terra blockchain. The main difference between the two tokens is how they manage the staking rewards:
- stLuna's rewards are compounded: they are sold to Luna and immediately re-staked, thus increasing the underlying amount of staked Luna and growing stLuna holders' exposure to Luna. This makes stLuna a convenient token to use in liquidity pools and various DeFi protocols;
- bLuna's rewards are sold to UST and sent to a separate bLuna rewards contract that users can claim their rewards from. The bLuna token is perfectly compatible with the Anchor protocol.
Lido on Polygon
Lido on Polygon is a DAO governed liquid staking protocol for Polygon PoS chain. It allows users to stake their ERC20 MATIC tokens on Ethereum mainnet and immediately get the representation of their share in the form of stMATIC token The goal is to help with Polygon decentralization and integrate stMATIC with the variety of protocols and DeFi applications on the Ethereum mainnet and Polygon PoS chain. 
Lido for Solana
'Lido for Solana' is a Lido-DAO governed liquid staking protocol for the Solana blockchain. Anyone who stakes their SOL tokens with Lido will be issued an on-chain
representation of the SOL staking position with Lido validators, called stSOL.
LDO grants governance rights over the Lido DAO. By holding the LDO token, one is granted voting rights within the Lido DAO. The more LDO locked in a user’s voting contract, the greater the decision-making power the voter gets.