Let's see if this works.  Watch this video, and try translating its captions into another language.  (You'll have to register with dotSUB to do this.)

dotSUB's tool is very easy to use, and suddenly makes it possible to make a piece of video understandable around the world.  It's a wiki for translation.

Thanks to Michael Smolens for introducing me to dotSUB and for arranging for the transcription of the OneWebDay video!  I'm looking forward to seeing how we can encourage people to upload their own videos about how the web has changed their lives - and then encourage other people to translate them.  It's a great OneWebDay project.