Yee is a blockchain-powered & cloud-based social ecosystem. Yee project includes 4 parts: YeeChain: a blockchain supporting fast transaction and high-efficiency storage; YeeNet: a cloud-based communication network based on YeeChain; Typical applications: YeeCall, YeeWallet, Dapps (decentralized applications), and YeeStore; Yee ecosystem. YeeChain and YeeNet are our long-term goals and they will be built as open source platforms. Developers all over the world can participate in and contribute to blockchain development.