Which web sites are the most significant for human progress? Off the top of my head I can think of three that make a real difference not just to me but all of humanity. Wikipedia is one, Google Scholar is another but my third choice may not be so familiar, MIT Open Courseware.
MIT is one of the major US university and a centre for world class teaching and research. A few years ago it started releasing its course notes and lectures free over the internet. Allowing anyone to access top-notch education materials that were previously only available to a tiny handful of people.
The range of courses is amazing, covering astronautics to women’s studies. For the Myomancy reader, there are courses on the Neural Basis of Movement, the Neural Basis of Learning and Memory or Language and Mind. These courses are not cut down, bite-sized chunks but educational material designed for top-class university students. Consequently they are hard work. However if you really want to improve your understanding of a subject, there is no better resource.