This article from the Washington Post, On the Electric Campaign Trail, gives examples of the way some politicians are using the video capabilities of the Internet to reach potential voters. Mitt Romney used a video message to defend attacks from opponenets. John Edwards, Hilary Clinton, and Barack Obama, have all used the web to, dare I say it, outline their positions on issues. Issues! (See my previous post of Sen. Dorgan’s video re: net neutrality.)
I haven’t heard of any yet, but there must also be plenty of political attack ads on the way, in all their abrasive, low-budget glory.