This artist posted A fractal a day for the month of november. They make great desktop wallpaper too!

I use applications of discrete math all the time in programming, though I never got to take a discrete math class. I found this lecture series from a discrete math class by an instructor at Rutgers, Sergio de Biasi. It is one of the few class lectures about discrete math that is online. I’ve included the first class video below. The whole series of lectures is available on on vimeo.

Discrete Structures Fall 2010 Lecture 01 from Sergio de Biasi on Vimeo.