Polkadot and Kusama
Every project that ends up on Polkadot first goes through Kusama (KSM), which is Polkadot’s pre-production platform. Kusama is a unique project that allows crypto developers to experiment with their applications before minting them on the main chain.
Ocean Protocol
Launched in 2017, the Ethereum-based Ocean Protocol is a trustless, decentralized data and AI-sharing service.
It wants to be the Uniswap of data. In other words, enable everyday people and businesses to access a marketplace of data and use it for their own benefit.
https://medium.com/yardcouch-com/web-3-0-how-to-invest-in-the-next-internet-revolution-343f31f2b69d