This document provides an overview of marketing channel structure and functions. It discusses how channel members add value through specialization and the division of labor principle. The document also examines different types of marketing channels for consumers and businesses. It explores considerations for selecting and managing multi-channel distribution systems, as well as carefully selecting and developing international channel members. Finally, it summarizes that future distribution channels will be more interactive and challenged by the internet, while international channels will remain important with an adaptive focus on customer preferences.