Internet Business Models rigorously analyzes the different business models employed by Internet companies. The book examines eight Internet business access providers, portals, content providers, retailers, brokers, market makers, networked utility providers, and application service providers. Each chapter describes the value proposition offered by companies that pursue a given model; the factors that drive their revenues, costs, and profits; and the key strategy decisions that confront companies pursuing the model, e.g., whether to pursue aggressive growth strategies; whether to diversify. Supporting each chapter are case studies (23 total) of Internet companies written during 1999/2000 by professors at the Harvard Business School.