Videos online

My introduction to Youtube was when Paul Potts performed on Britain's Got Talent and was posted on Youtube. Since then I have followed Susan Boyle's performance. Closer to home I looked for film of the March 31st floods in Coffs Harbour.
I was very interested in the examples of libraries using video to promote their service or to provide staff training. Initially I would like to see video being used with the youth. I think this media is very much a part of their culture and it could be a good way to promote library collections and databases to them.