There's no better barometer for the changes afoot in media than looking at the technology that's driving this presidential election forward. Here's a very good overview of the massive shift in tech usage this election, from YouTube to social networks and all points in between:
But what’s of interest here is not how one media form compares to another — it’s how new media and old media are pushing and pulling both ways, vying for audience (power), learning from and reacting to the other.