Online discussions can extend and enhance understanding of course content.
Discussions can complement the educational activities of a course.
Online discussions could include topics that otherwise would not be discussed within a limited class time. Discussion questions can be posed to check the understanding of a topic or the application of course content. Students have more time to respond thoughtfully. Allows for participation by all, and students can share information with the entire class. Talkers would not monopolize a discussion, and students could participate equally.