Web 2.0, You Man of the Year, You

This year, Time magazine named you the man of the year. Congratulations.

What does that mean? It means the little guy has a voice. But with this voice comes responsibility. I'm sure you've seen the Youtube videos. Some kid in front of a camera discussing global warming or Myspace or some other hotbutton social or technological issue. Similarly, someone, somewhere is, as we speak, typing their opinion about endangered habitat or discussing how their day went. I know you know Myspace.

But, what effects do these emerging technologies and mediums have on the human or societal level? Pros? Cons?