Description of London's Docklands Light Railway, which is a great example of control technology in practice, with driverless trains controlled by a central computer!
I have already uploaded this video to dailymotion.com, but I thought I would try this because both dailymotion and youtube provide the facility to post a video as a blog.
I should imagine this could have exciting applications in a school context. For example, imagine being able to (easily) report from a school trip in the form of a daily video blog!