E-Commerce or eCommerce is the trading or facilitation of trading in products or services using computer networks, such as the Internet or online social networks.

E-commerce businesses may employ some or all of the following:

• Business-to-business buying and selling
•  Online shopping websites for retail sales direct to consumers
• Business-to-business electronic data interchange
• Providing or participating in online marketplaces, which process third-party business-to-consumer or consumer-to-consumer sales
• Online financial exchanges for currency exchanges or trading purposes
• Engaging in retail for launching new products and services
• Gathering and using demographic data through web contacts and social media
• Marketing to prospective and established customers by e-mail or fax