This article presents research conducted between 2002 and 2007 that examines user discourse, message flow, and exchange frequency in Web-only courses, blended courses, and then the same types of courses extended with a 3D online learning environment. The purpose of this study is to examine the impact that a 3D online learning environment has on discourse with Web-only and blended courses. Findings from this study suggest that the addition of a 3D online learning environment to both Web-only and blended courses demonstrates the ability to more rapidly create rapport among users, which translates into accelerated discourse that occurs earlier in and sustains itself longer and throughout the semester. (Contains 5 figures and 2 tables.)