This article discusses the differences between MIS and KMS systems and how Amazon uses both systems to improve its business operations and customer experiences. It explores the benefits of MIS in terms of operational efficiency, value addition, innovation, and decision-making, while highlighting the advantages of KMS in terms of knowledge sharing, architecture, resource management, and expansion cycles. The article also presents an outline of an MIS solution for a medium to large company and applies Porter's competitive forces model to the banking sector, discussing the potential benefits of IS, online collaboration, Web 2.0, social networks, and mobile devices for banks and their customers.