Novacoin is a hybrid Proof of work (POW) / Proof of stake (POS) decentralized peer-to-peer cryptocurrency.The Proof of Work part of Novacoin is based on the Scrypt hashing algorithm. Proof of Stake contributes to the coins energy efficiency, as there is no need for nodes to contribute mining power to part of the money creation process. As of now, Novacoin is set to be capped at 2 billion coins. However Novacoin stated that the cap limit may be lifted if the situation requires it. It looks very much like a variation of Sunny King Peercoin.
Yee - a blockchain-powered & cloud-based social ecosystem. This ecosystem includes YeeChain supporting instant money transfer and high efficient blockchain-based storage, YeeNet supporting cloud base communication, YeeCall app with 3000 registered users, YeeWallet and YeeStore which is a DApp and content management platform.