Have you heard of any legitimate party that is starting up? I mean the Tea Party got some traction quickly, but then out grew it's infrastructure and message - it's become so convoluted that most people don't know what it stands for (I would be hard pressed to "define it").
I agree that internet would make it easier, but the government CONTROLS the internet... So it's a medium that can be taken away.
I think that there is MUCH discontent out there. But how (who, really) can it be focused to the necessary laser-like precision necessary to carve out a new "territory" within the status quo?
I feel that anyone who starts such a movement will be targeted, publicly shamed/discredited and/or arrested. I think it's that far gone. I am not very hopeful at all that I will see change within my lifetime.
I think that the most likely chance of change will come from war or economic collapse, not a political revolution or a democratic transition.