This document discusses product differentiation strategies. It defines differentiation as adding meaningful differences to distinguish a company's offering. There are five dimensions for differentiation: product, service, personnel, channel, and image. The document provides examples of each dimension. It also discusses strategies for differentiation online, such as site environment, building trust, efficient ordering, pricing, customer relationship management, and user-generated content. The goal of differentiation is to create a competitive advantage by appealing to customers' unique needs and preferences.