Is the material usable for academic courses?
It's a random question that popped in my head. Being released under a CC BY-NC license, I'd say not it's not possible to use the material avaliable here for academic courses and/or any other courses for which the teacher gets paid for. Is that exact?
The intention is that the material should be used for academic courses, and not commercial training courses.
The license is however likely to change to remove the "NC" (non commercial) part, so stay tuned.. :)