What I was trying to convey was that the banding of people into self-identified interest groups on the internet, and filtering information through those sources, would help to dilute the monopolistic controls of the airwaves, simple because people would have independent critical review of the propaganda. I did NOT intend to imply that writing things on the internet was going to be an effective way to set up countering memes bubbling up from the grass roots -- indeed I argued (as you noted) that it would be ineffectual.
Instead, we need to use the internet (and possibly the Rick Santellis of the world in the MSM) to communicate and organize the like minded into effective action (as seen with the Tea Parties, if only the GOP-e hadn't sold us out for a mess of Porkulus).
Cheers!
Internet tribalism.
Good idea...