You should read this from Kevin Drum, but I liked it so much that I have to steal a chunk of it too...
"...something else that gets talked about a lot in the blogosphere but still doesn't seem to have fully made it out to the rest of the world: the netroots isn't a bunch of kids. In fact, the age distribution is pretty normal. So is nearly every other distribution.
What's happening now isn't a youth revolt, and it's not powered by free love, free acid, or fear of being drafted. It's powered by a lot of bog ordinary moderate liberals who have been radicalized by George Bush and the Newt Gingrichized Republican Party. I think a lot of journalists (though I don't mean to include Hertzberg here) don't quite get this because they haven't internalized just how far off the rails the modern Republican Party has gone. Until they do, they're going to continue to misunderstand what's happening."