I’d guess that the majority of university students (and upper level high schoolers) supplement their in-class learning with online help. I’ve found online teachers much more informative and concise, and therefore more efficient than my schools’ instructors. That’s not to say that I don’t go to class, but for homework and studying, online learning is very helpful.
Because we all have our favourites, I’ve decided to post mine. Sometimes it takes a while to stumble across a teacher you resonate with, so if I can help anybody get to that point by sharing the resources I use, that would be great.
Lassiviren1 (youtube) – concise but in-depth physics videos.
Michael Van Biezen (YouTube) – lots of physics videos.
Dan Fullerton (YouTube) – AP Physics.
PatrickJMT (youtube) – lots of calculus videos.
If you’ve got a resource you usually turn to, don’t hesitate to throw it down in the comments.