Cardano 

Staking Cardano consists of Pool Operators and delegators that receive rewards for getting involved in the decentralizing of the network. Pool Operators run their own nodes on the Cardano network that verifies transactions and secures the network. Delegators are users that do not wish to operate a node but partake in the network and also earn rewards by delegating their stake to pool operators.

Liquidity Pools 

A liquidity pool is the backbone for decentralized exchanges. Taking place of the traditional order book, a liquidity pool allows users to put up their crypto for others to borrow and trade while earning a portion of the transaction fees generated by the pool. 

Ethereum 

Staking Ethereum is similar to staking Cardano; however, you will not be able to un-stake until the launch of ETH 2. You will also need no less than 32 ETH to become a validator. Users who hold less than 32 ETH can still join staking pools and earn rewards.

NFT Staking Pools

A regular staking pool, users deposit tokens into a contract and are rewarded with the same or different token in the form of rewards.

An NFT staking pool is different because as a user you:

1. Use governance tokens to enter the pool.

2. Receive rewards as actual NFTs!