[Update] Audio-only file now available for download, if you prefer. See this post.
"When Social Media Meet Social Change"
Here is the 2011 Vancouver Human Rights Lecture, given by Ethan Zuckerman. Even if you think you can't stand to hear one more word about Facebook and Twitter saving the commoners from the ruling classes, I encourage you to give this a chance. Despite his obvious enthusiasm for new media and what it may afford in bringing about monumental change, Zuckerman is quite realistic about the limitations and the risks. Also, he hates the word "viral."
Without further ado ...