I suppose the internet might have had a more democratizing effect where ordinary people can broadcast their opinions to the world. But I'd be curious to know how much that actually matters. It seems to me that it's still the case that if you're a 'regular nobody', nothing you post on your facebook is going to have an impact beyond your immediate circle of friends.

How about Twitter? That's where the problem is worst, and that's where people are constantly in "talking to the crowd" mode.