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
Here are the old swf files from ictgcse.com that explained simple networking concepts. Feel free to embed them in your vles if you like but woe betide anyone that tries to pass them off as their own and sell them on....