Of course signing up to get registered is only part of actually getting to vote. This is an interesting initiative aimed to help bridge that gap, or at least show up when it doesn't get bridged - Video the Vote 2008:

Video the Vote is a national initiative to protect voting rights by monitoring the electoral process. We organize citizen journalists—ordinary folks like you and me—to document election problems as they occur. And then we distribute their footage to the mainstream media and online to make sure the full story of Election Day gets told.

Of course it is pretty weird to have a situation in which people feel this kind of thing is necessary. But it would appear that they are right to feel that.