After we saw "The Social Network" I wrote that I was amazed by the genius of Mark Zuckerberg but wished he'd invented something important.
But, of course, I was wrong about that.
As I write this we're in the midst of unrest in Cairo. A while back, during the elections, Iranian young people let their voices be heard around the world.
George Clooney and others have made the world aware of the conditions in the Sudan.
None of this could happen without the social media. We're seeing - and more importantly - experiencing -worldwide events in real time.
By contrast, the folks in North Korea put up with their miserable lifestyle because they're a closed society. They don't know what's out here.
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