Hey, Jimmy Wales is the guy behind Wikipedia, which is a really big deal. He's now trying something which people can use for improving democracy via the 'net:
What I am trying to do today is make a big noise in the blogosphere to try to build a group of like-minded very smart people who are interested in working on engaging political campaigns to take the Internet discourse seriously, to use wikis and blogs as integral tools for engaging people in the political process.
The big picture vision here is: broadcast media brought us broadcast politics, and now participatory media will bring us participatory politics. But for this to happen, we have to make it happen.
for more, check here