Dai is a cryptocurrency-backed stable coin that can be generated by keeping any asset as a collateral in the protocol. According to the whitepaper of Maker protocol, Dai is a decentralized, unbiased, collateral backed cryptocurrency soft pegged to the US dollar. Read more in this article.

Balancer is a n-dimensional automated market-maker built on top of Ethereum. It allows anyone to create pool or add liquidity to customizable pools and earn trading fees.