Polaris Share (POLA) is a Decentralized-Incentivized Knowledge Trading System that connects knowledge content creators and the users to provide incentives for sharing knowledge. Polaris, the provider of the globally used cloud office service “Polaris Office,” is aiming to construct the knowledge trading ecosystem which surpasses document sharing service that was traditionally used. With Polaris Share, the content creators may receive rewards based on the quality of the contents and the users will be able to get higher quality of services with lower costs.