The key elements of online course design and pedagogy suggested by research as promoting effective learning are discussed through the lens of constructivist epistemology. Presentation of content, instructor-student and student-student interactions, individual and group activities, and student assessment are each addressed, in turn. The focus is on learning and recognition that, from time-to-time, all students are teachers as they bring diverse expertise, experiences, and worldviews to the task of learning. Reflection on past experiences, interaction with other members of the learning community, immediate instructor behavior, authentic group activities, and diverse assessment tasks with timely and detailed feedback are underscored. (Contains 3 tables.)