A discussion group is a type of gathering where people come together to discuss a particular topic. A SEMINAR is a type of discussion group that typically involves a lecture or presentation followed by a question and answer session. A FORUM is a type of discussion group that is usually conducted online, allowing participants to post comments and questions. A PANEL is a type of discussion group that involves a group of experts discussing a particular topic. Finally, a COURSE is a type of discussion group that involves a series of lectures or classes on a particular subject.