“Bloggers and internet pundits are exerting a “disproportionately large influence” on society, a report by technology researchers says.

More than half of the continent’s internet users are passive and do not contribute to the web at all, while a further 23 per cent only respond when prompted. But the remainder who do engage with the net – through message boards, websites and blogs – are helping change national conversations, the study says.” (Age)
The study seems to be more about the impact of grass roots campaigns but it would be interesting to examine whether dissatisfaction with traditional media also had an effect.