Over the last few months, the phrase Back Channel has been used more and more. You would of heard it many times from +Sarah Hill to describe the online conversation taking place in real time alongside broadcast TV.

It seems that Victor Yngve first used the phrase back channel in 1970 in the following passage:

Backchannel is the practice of using networked computers to maintain a real-time online conversation alongside live spoken remarks. The term was coined in the field of Linguistics to describe listeners' behaviours during verbal communication, Victor Yngve 1970.

More recently, backchannel can refer to social media like SMS messages, tweets, facebook and now Google Plus and hangouts.

Cliff Atkinson wrote a book The Backchannel: How Audiences are Using Twitter and Social Media and Changing Presentations Forever which explores the impact of the backchannel on live presentations, and describes practical steps that presenters can take to engage the changes (Dec 2009).

However, two years is a long time in Social Media and was written way before google plus and the hangout reared it's head.

Homework: Read up on The Back Channel and leave some ideas here.

Refs: http://en.wikipedia.org/wiki/Backchannel
Book: http://goo.gl/oNStA Bookwebsite: http://www.backchannelbook.com/
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