If you are taking mathematics courses related to combinatorics or probability, I found a **page** from UCLA containing hundreds of video lectures on the said subjects. It is a collection of lectures from 1993 up to the present and includes lectures from famous mathematicians such as Terence Tao.

For more free video lectures, visit the **All for Free** page of **Math and Multimedia**. It also contains posts which links to hundreds of free ebooks and software.