educational websites

Favourite educational websites (in no particular order):

(1) http://videolectures.net/
(2) https://www.coursera.org/
(3) http://www.khanacademy.org/
(4) http://www.ted.com/

wikihow

I have yet to explore the full usefulness of this website: www.wikihow.com/, but so far, I'm very happy with the step-by-step (with picture) recipes that it contains! In fact: with many things you may want to learn how to do, the approach of 'K simple steps' and guided pictures, is the fool-proof way to do it :)