E-retailing refers to the process of selling products or services online to consumers. It allows customers to shop anytime from anywhere with just a click of a button. The document outlines the key benefits of e-retailing for both buyers and sellers. It provides convenience for customers while allowing sellers to reach a wider market and operate 24/7 with lower transaction costs. Some successful e-retailers mentioned include Amazon, Dell, and Boots.com. The document also discusses best practices for e-retailing such as making the shopping experience easy and enjoyable for customers.