E-commerce is a form of business that uses the internet to facilitate transactions. E-commerce encompasses three areas: online retailing, electronic markets, and online auctions. Online Retailing: Online retailing is where a company sells its products and services directly to customers via the internet. The most common types of online retailing are websites and mobile apps. Electronic Markets: An electronic market allows buyers and sellers to transact with each other electronically. These markets are sometimes referred to as eCommerce marketplaces or eCommerce platforms. Examples include eBay, Etsy, Amazon Marketplace, Shopify, Etsy, Magento Enterprise Edition (ME) and more! Online Auctions: Online auctions allow buyers and sellers to transact with each other electronically through an auction format. Auctions can be run by individuals or companies using their own websites or using an existing platform such as eBay