This document discusses electronic and mobile commerce. It begins by wrapping up a discussion of information systems in organizations and how they progress from cost reduction to competitive advantage to performance-based management. It then defines electronic commerce as conducting business electronically over computer networks. The document outlines different types of electronic commerce including business-to-business, business-to-consumer, and consumer-to-consumer. It also defines mobile commerce and provides examples of popular mobile commerce applications. Advantages of electronic and mobile commerce discussed include improved infrastructure, electronic payment systems, and increased access to information.