Here's a film showing a real virus being distributed via email. Nice lesson for all key stages but perhaps particularly appropriate for students doing the OCR National course (Unit 1 AO2)
A series of video tutorials that go throught the various techniques that need to be covered to gain a distinction grade on the OCR Nationals unit 2 web design course. The videos can be used with KS3 students as well. If you want to test the kids on these tutorials then there is a link at the end to another set of resources in here that is what I use as an end of year 7 exam, it really is very good and the kids really enjoy doing it.
Series of videos to show students how to make a game in scratch. Learn how to make parrots move randomly, create a crosshair target to follow your mouse, show and hide objects, keep scores and play against a timer. No idea what happened with cut outs in video 4 and 5 but I no longer have the originals to amend, however you can also use this tutorial on the teach-ict site by following the alternative link at the bottom