This document discusses intrabusiness e-commerce and intranets. It defines intrabusiness e-commerce as activities conducted within an organization between business units, employees, etc. Large corporations consist of independent units that trade products and services over intranets. An intranet is a private network that uses internet technology securely behind a company's firewall. Intranets provide tools for communication, collaboration and access to company information. They can change organizational structures and help reengineer companies.