This short video was taped at Web 2.0 Expo in late April. I was there, but unfortunately wasn’t in the audience. Nevertheless, I came across this a few days after the conference was over, and was blown away. I have a vested and personal interest in the “why’s” of social media – I am always looking for answers to the big questions, the questions that ask whether this is as transformative as we all believe it to be. Shirky goes a good distance in explaining some pivotal motivations for our changing online behaviour with an explanation of what he calls the cognitive surplus. Take a look for yourself; I guarantee it will be the most informative and thought-provoking 15 minutes of your day.