This document provides an overview of electronic business (e-business) and its applications. E-business utilizes information and communication technologies to support business activities both internally and externally. It focuses on using ICT to enable relationships between a business and individuals, groups, and other businesses. The web is a key tool for e-business, allowing businesses to attract customers through marketing and advertising, improve customer service, and expand their reach. E-business provides benefits like increased sales, reduced costs, and more accessibility and communication. Its applications include internal systems like CRM and ERP as well as e-commerce, supply chain management, and online/offline marketing. E-marketing, e-commerce, and e-business are related but