Metacademy ( http://www.metacademy.org/ http://www.metacademy.org/ ) is exactly what you described. The website gives a concept map and each concept has links t

Metacademy ( http://www.metacademy.org/ http://www.metacademy.org/ ) is exactly what you described. The website gives a concept map and each concept has links to free educational resources. Here's the concept map for SVD: http://www.metacademy.org/graphs/concepts/singular_value_decomposition#focus=singular_value_decomposition&mode=explore http://www.metacademy.org/graphs/concepts/singular_value_dec... You can read a bit about the ideas behind Metacademy here: http://hunch.net/?p=2714 http://hunch.net/?p=2714