The Cambridge GCSE Computing MOOC is well worth visiting, whether you are a teacher or student.
It is completely free and includes hundreds of videos, resources and quizzes.
If you are a teacher looking for some CPD, look no further. This could really help your personal development.
Students will love this too. It is aimed at 14-16 year olds but I have a 12 year old working through this in his spare time. You may not get a GCSE out of it, but you do get a certificate of participation.
It is clear that a lot of time has been spent creating this. I really appreciate those involved in this project, I am sure it will be a great success.
This is work in progress and they are adding more lessons throughout this year and next year.
Give it ago, you may just love it.
Sign up for it here:
http://cambridgegcsecomputing.org/
Here is an example of a couple of videos:
mattbritland.com 
Nice – thanks as always Matt – not sure I have the hours in the day (of course) who has?
Maybe in the long autumn term – or the not doing much at Christmas time vacation
Yeah…maybe. It’s tough isn’t it. They are dripping the content in, so it should make it more digestible.
Should be in a position to share what my Year 9s have been up to with the Staying Safe Online topic that you suggested… We are in evaluation stage.
Excellent!