I was recently introduced to Pummelvision - an online tool for making videos from photo collections - and used the service to make a video of some of my Flickr-held images of Tokyo. The service produces a snappy little clip with a choice of displaying the images 'fast' or 'very fast' (hold on to your hats, I chose 'very fast').
It's very simple to use, taking pictures from places like Facebook, Flickr or Instagram and putting them up at either YouTube or Vimeo. Once a collection of images has been chosen, Pummelvision throws them all together and syncs them with an audio clip that matches the speed of image navigation.
For a 30-second clip, it's quite nice. I'm sure that such a tool could have some effective classroom uses, such as producing a video to showcase steps of a project or something like that, but at the moment it's also fairly limited. There is only one choice of song, for example. Still, a bit of fun all the same with potentially wider uses.
Enjoy the video.