The Flickr concept.
I've had trouble sticking to the 10 minute limit in YouTube, so it might seem that Flickr's new feature — video, but only up to 90 seconds — is next to useless. But thinking in terms of "long photos" may help. I've occasionally taken what I'd be happy calling long photos. Like this:
I'm going to start carrying around one of these Flip Video things, so we'll see what happens.