I also think that policy discussion is a useful subject.

At the moment a website like Avaaz allows people to give their signature to signal that they support a specific policy proposal. The problem is that most of the policy proposal on Avaaz are badly thought out.

I think there room for a liquid democracy driven website that's like Avaaz but where users can vote on ammendments to existing policy proposals. That could allow for very detailed policy proposals.

It would also be possible to develop model legislation (model bills) in that way as part of the policy proposal, which in turn can raise the political impact.

I think such a project could have a meaningful impact on the political landscape where at the moment a lot of people don't like to talk about details.