Is social media a fad? Or is it the biggest shift since the Industrial Revolution?

[youtube]http://www.youtube.com/watch?v=sIFYPQjYhv8&eurl=http%3A%2F%2Fmashable%2Ecom%2F2009%2F08%2F14%2Fsocial%2Dmedia%2Dstats%2Dvisualized%2F&feature=player_embedded[/youtube]