eCommerce

Electronic commerce (e-commerce) is the act of buying or selling products by means of online services or the Internet. Electronic commerce is supported by technologies such as mobile commerce, electronic fund transfer, supply chain management, Internet marketing, online transaction processing, electronic data exchange (EDI), Inventory Management Systems and Automated Data Gathering Systems.

Four traditional types of electronic commerce exist: B2C (Business-to-Consumer), B2B (Business-to-Business), C2B (Consumer-to-Business) and C2C (Consumer-to-Consumer). There is also the B2G (Business-to-Government) but this is often combined with the B2B.

E-commerce or electronic commerce purchasing is the purchase and selling of goods, products or services on the Internet. ... Online shops such as Amazon, Flipkart, Shopify, Myntra, eBay, Quikr, Olx are examples of eCommerce sites. By 2020, the world's online retailing industry could reach $27 trillion.