Not so much programming techniques or best-practices, but I've really enjoyed watching Computer Science and Math-related lectures on MIT Opencourseware's channe

Not so much programming techniques or best-practices, but I've really enjoyed watching Computer Science and Math-related lectures on MIT Opencourseware's channel. I highly recommend that one. If you're trying to re-learn math (and probably going the Khan Academy route) then I highly recommend checking out PatrickJMT's channel. He produces simple, but excellent mathematical videos in a style similar to tutoring (which is how he started doing the videos in the first place). I actually find his style to be much more engaging than Khan (nothing against Khan of course).