E-business and e-commerce refer to conducting business electronically over the internet. E-business encompasses all aspects of doing business online, including selling products (e-commerce), collaborating with partners, and servicing customers. E-business uses internet technologies and infrastructure to transform key business processes internally and externally. There are several types of e-business models including business-to-business (B2B), business-to-consumers (B2C), consumers-to-consumers (C2C), and business-to-administration (B2A). E-business can benefit companies by reducing costs, improving customer service, and increasing revenues.