And the professor might call on particular students to comment on what other students have said. There's no lurking in the corner, hoping you don't get called on. In asynchronous courses, the professor and students communicate at their convenience, often in bulletin board-like correspondence. Internet courses, which can include virtual field trips, often include video and audio. The video might present a security issue in a hotel lobby.
Students then analyze the case study and write up a report.
Or the professor might assign a group project in which students develop a bulletin board and design an effective approach to the security problem. The demand for Internet courses is growing. We've pushed the Internet. It's so dynamic and offers such a rich learning environment. It gives you access and convenience, and a lot of adults are interested in that.