Now updated to include, among other new links, 5 suggested MOOCS for Medics: opportunities for any students thinking of a Medicine or medical-related course at university to try out a free online course. In many cases there is a certificate of completion or course credits to add to the satisfaction of completing a course.
Feel free to copy, share or steal the list and spread it widely. Some of these sites and providers are well-known, but others are deliberately niche and unusual. As before, this is skimming the surface, overview not depth, but if it opens a few doors during lockdown it will have served its purpose. The new list is here.