Last night on MTV, four candidates presented young voters with their closing arguments and got another lesson from Ron Paul in how online organizing really works.

After a few technical glitches, the MTV/MySpace candidate dialogue series kicked off today, streamed live from the University of New Hampshire, where Sentator John Edwards was grilled by college students, and held accountable for his answers by online viewers who voted their approval or disapproval of senator's answers in real time. Here's how it went.