Business done electronically through a web of interconnected networks including the public Internet, intranets, extranets and value-added networks is e-commerce. Electronic commerce between businesses is not new. 1 Businesses began sending and receiving purchase orders, invoices and shipping documents electronically via EDI in the late 1970s. EDI over private networks was complex, initially expensive and it required training and installation. The Internet makes electronic commerce affordable to companies of all sizes. 2 Companies of all sizes can now communicate with each other electronically, through the public Internet, networks for company use only (intranets) or for use by a company and its business partners (extranets), and private value-added networks. 3 Business to Business (B2B) e-commerce is the business done among businesses. It is used for coordination between the purchasing operations of a company and its suppliers; the logistics planners in a company and the transportation companies that warehouse and move its products; the sales organizations and the wholesalers or retailers that sell its products; and the customer service and maintenance operations and the company's final customers. 4 B2B e-commerce supports seamless international business communication, cross-industry data sharing, complex procurement models, engineering collaboration, planning collaboration, manufacturing, and test collaboration, complex transactions, event tracking, customs clearance, global freight consolidation and more, regardless of supporting operating systems and software. Business done between enterprises and consumers on Internet is Business to Consumers(B2C) e-commerce. The Business to Consumer (B2C) opportunity is huge. Consumers are predicted to spend $100 billion on the Internet by 2013. 5 The Internet is an extremely effective medium for creating customer loyalty and company profitability.