I read a recent interview in Time magazine with Brian Eno;
"Pointing to the popularity of do-it-yourself websites like YouTube and the affordability of video-editing software like Final Cut, Eno sees a parallel with the revolutionary effect the 45 r.p.m. single had on popular culture in the '60s. "It suddenly liberated music because people only had to have one good idea," he says. "And it only had to to last 2 1/2 minutes."
See here for the rest of the article.
I think it can be even simpler than that if you decide to use Window's Movie Maker (it comes with Windows XP as standard) or Photo Story 3 i.e freely available video editing tools. As a proof of concept I decided to make this video mainly using images from Flickr. What I hope to do in the near future is incorporate this technology into my lessons.