This document outlines best practices for managing SharePoint users. It discusses the fundamentals of SharePoint site membership and authentication providers. It then describes a 5-step process for effectively managing SharePoint users: 1) Identify communication requirements, 2) Group site users, 3) Map requirements to permissions, 4) Enforce permission change management, and 5) Document and maintain access information. The goal is to determine users' information and communication needs and map them to the appropriate level of site access.