Yesterday's BB session changed my expectations for discussions--in class or online. When the BB screen was populated with dozens of responses to Alec's questions, it was clear how little I learn about what my students think when conversations take place one at a time. Dyads aren't useless, but there's no need to be limited by them.
In the following example Alec asked about what digital literacy means to us (65 or so participants in the session).
Over 40 responses, posted within seconds of each other, disclose to individual viewers a range of perspectives, anonymously. We can draw from a group of students to similarly make visible this variety of perspectives but not in so little time.