NN/LM Training Office: 2 Backchannel Discussion Tools for Librarians. “Backchannels have been around for awhile. A 2010 Educause 7 Things You Should Know About Backchannel Communication called them ‘a secondary electronic conversation that takes place at the same time as a conference session, lecture, or instructor-led learning activity.’ Backchannels provide a space for real time conversation, alongside the primary activity. Twitter is an example of a backchannel. Here’s two more backchannel tools you might find useful.” Short article, but a neglected resource.