In its previous existence (i.e. before it was based on a blog) a collection of links was gathered to support this course. The idea was to develop a resource for those doing the course. It was supposed to be the online equivalent of a list of books to read to add to what you learnt in class.
This list was set up on a third party service and was divided into a number of sections, one for each stage of the course. The internet is changing and growing all the time with new things appearing and other things disappearing. We will tell you where to find it once you become a member.