Electronic Commerce is a marketplace on the Internet. Other references include e-commerce, EC, eCommerce and ecommerce). eCommerce consists of distributing, buying, selling, servicing and marketing services or products over the Internet.

eCommerce includes electronic business applications such as electronic funds transfer, e-marketing, online marketing, supply chain management, online transaction processing, electronic data interchange (EDI), and automated data collection and inventory management systems.

In addition to the World Wide Web, eCommerce makes use of other computer technologies such as databases, and email, as well as non-computer technologies such as transportation that is used to move the physical goods sold via eCommerce.