Here’s an interesting use of online video to facilitate public participation in international policy making. The Organization for Economic Cooperation and Development (OECD) has asked the "YouTubers" to submit their visions of how the internet can be used to "make the world a better place" which will be responded to by member states of the OECD. This is done to coincide with the OECD Ministerial Meeting on "The Future of the Internet Economy" in Seoul Korea.
I hear that you only have seven more days to submit your question. So get those webcams rolling! I’ll try and think of something smart to submit — probably something on supporting new forms of democracy and citizen engagement using ICTs.