Please note: You may also like to have a look at the E-Learning Theory and Methodology section about how forums and chat rooms can be implemented to ensure 'effective' discussions take place - click here to read it.
On-line discussion forums are a great way to have class discussions or debates over a period of time.
Because the discussions are on-line people can participate in the discussion regardless of their location and and contribute at a time and at a pace that suits them best.
On this page you will find links to sites that allow you or your students to set up free & secure online forums quickly and easily.
As all of them accomplish the same thing, which one you use depends on your personal preference: