My cybersifting has enabled me to identify a number of useful tools for locating and viewing videos. My searching has been focussed on learning more bout web 2.0 applications. This site, vodpod enables you to search topics and save useful videos into a pod. At this link, you can access my collection, join up or follow others.
By saving to vodpod, you can access many youtube and google videos of educational value that would otherwise be blocked because the main site is understandably not accessible in schools.
I have a range of videos that complement what I have collected through slideshare.