Management in business and organizations is the function that coordinates the efforts of people to accomplish goals and objectives using available resources efficiently and effectively. wikipedia.org

An intranet is a computer network that uses Internet Protocol technology to share information, operational systems, or computing services within an organization. wikipedia.org

Marketing is the process of communicating the value of a product or service to customers, for the purpose of selling that product or service. wikipedia.org

Public relations (PR) is the practice of managing the flow of information between an organization and its publics. Public relations provides an organization or individual exposure to their audiences using topics of public interest and news items that do not require direct payment. wikipedia.org