This document defines and provides examples of the main types of e-commerce: - Business-to-business (B2B) involves businesses selling goods and services to other businesses, such as Dell purchasing computer components from manufacturers. - Business-to-consumer (B2C) involves direct sales from businesses to consumers through websites, like consumers purchasing products directly from an online retailer. - Consumer-to-business (C2B) involves consumers creating value for businesses, such as by writing reviews or providing ideas that a business decides to adopt. - Consumer-to-consumer (C2C) allows individuals to buy and sell to each other through online marketplaces like eBay where person-to-person