Here is an interesting story about Twitter as a tool to cover the presidential campaigns. I have to admit that I've grown to like Twitter more than any other social network, and I can see why it's so effective for this kind of thing. It's easy to skim and feel like you've seen the important things going on. Although, admittedly the short message limit prevents much depth of conversation. I've even wondered if companies will start paying people to Twitter about their products, based on the number of Twitter followers who will see it.
If you want to follow my twitter feed, you can do so here.