This document outlines best practices for implementing public-facing SharePoint 2010 sites. It discusses the business case for public sites, new Internet-friendly licensing models, branding tips, authentication options like forms-based authentication and anonymous access. Topologies for external-facing implementations like edge firewall, perimeter network and split perimeter network are presented. Security gateways like TMG and UAG are also covered. The document concludes with avoiding common pitfalls, best practices like using a least privilege approach, and resources for assistance.