You may find the resources on my website useful: http://aleveleconomicssuccess.com/
There are pages on all aspects of the course. You can use the guided learning sheets to check your understanding of topics and make notes.
The resources section contains up to date videos and articles on all aspects of economics.
There are past papers and specimen papers for all exam boards.
The specifications are there too.
I hope you find it useful and I would welcome any feedback
... and the ones that won't