violence on the internet

I have seen this happen because of MySpace, A friend left a bad comment on another friends site. This led to an physical fight the next day. If the internet can spark small alterations such as this. There is no question it can start much bigger things and probably has. Weird thing the internet makes out lifes so much easier, but bad things come with everything, huh?

Since the internet is only a few years old, how do you explain that the others have been going on for much, much longer. Don't you know any history at all?