Added on 26 Jan 2019
Introduction to Ray Tracing, a 1989 book Free to download: http://www.realtimerendering.com/blog/an-introduction-to-ray-tracing-is-now-free-for-download/
Finland has put together a course to learn Artificial Intelligence, a national priority. Learn for Free here: https://course.elementsofai.com/
Managing remote courses, a crash course: http://klinger.io/post/180989912140/managing-remote-teams-a-crash-course
Deep learning basics, a Free course from MIT, USA: https://www.youtube.com/watch?v=O5xeyoRL95U
Howard Marks is renowned, his memos: https://www.oaktreecapital.com/insights/howard-marks-memos
National Library of Australia: https://www.nla.gov.au/app/eresources/list/free
Open Learning Initiative - CMU: http://oli.cmu.edu/
Chemistry, Concept of Statistics, Introduction to Biology and more...
Learn anything - Khan Academy: https://www.khanacademy.org/
Harvard, Berkeley, MIT and more...
Coursera - Courses and degrees: https://www.coursera.org/
Introduction to Applied liner Algebra (Stanford): http://vmls-book.stanford.edu/