Tonight I was looking for some reference material for some homework (more on that some day soon) and remembered MIT's Open Courseware. I found a few that may be interesting to some readers:
Ever want to take an algorithms class? There is a complete course online (with videos, lecture notes, etc.) here: Introduction to Algorithms
A few other links that might help that one make some sense: Mathematics for Computer Science, another one Mathematics for Computer Science and Undergraduate Seminar in Discrete Mathematics