They focus group energy, they permit real-time interaction (which can help develop group cohesion, especially for those less familiar with media-based learning) and, most importantly, they provide a familiar instructional environment that mimic many positive features found in the traditional classroom environment (i.e., synchronicity, verbal rather than text-based interaction, instructor presence, whiteboard presentation facilities, hand-raising for turn-taking, public and private messaging capabilities).

Nonverbal communication adds nuance or richness of meaning that cannot be communicated by verbal elements alone. Given time and experience, some of the same richness of real-time, face-to-face communication can occur in a virtual, text-based medium.