This document discusses e-commerce and e-business. E-commerce refers to buying and selling online, while e-business is a broader concept that also includes customer service, partnerships, and internal organization functions. There are different types of e-commerce such as business-to-business, business-to-consumer, consumer-to-consumer. E-commerce provides benefits to organizations, customers, and society as a whole such as access to wider markets, lower costs, and increased standard of living. However, it also faces limitations such as security and privacy issues. The document outlines the consumer decision process and different advertising and shopping methods used in e-commerce.