The document discusses various theoretical aspects and market research findings related to the US e-commerce market. It covers topics such as the stages of B2C e-commerce, competitive advantages, drivers for e-commerce including cost and flexibility. It also discusses trends like social commerce, flash sales, recommendations, and the growth of the US e-commerce market from $200B to over $300B by 2016. The document provides examples of new e-commerce business models and discusses which have survived, as well as the shift from physical to online stores.