Wiki has been widely accepted by educational institutions, homes, and corporations, and is expected to grow continuously. Business enterprises quickly recognize the value of shared content: Some of the largest corporations, such as Google and IBM use wikis to manage daily operations and to share information among employees. This case study presents how NBC Universal developed a wiki, and used it to enhance knowledge-sharing, thereby achieving significant costsavings, performance improvement and employee satisfactions. This case shows Wiki can bring greater value to an organization with a dynamically changing structure in which capturing and sharing of tacit knowledge is critical for its success. By clearly demonstrating benefits of collaborative information repositories in the widely-recognized media and entertainment firm, this case will provide valuable learning opportunities to both professional and academic audience.