QR Section

So the new updated Ari's Study Schedule uses a compilation of Khan Academy's math videos. I've used Chad's before and still have his notes but my understanding of QR didn't really improve so I don't really want to purchase it again. What videos/other resources are you guys using for QR? (btw, QR is my weakest subject)
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums