I dropped out. How do I continue my CompSci education? I am a second year CS undergrad who is taking an (indefinite) break from school to start a startup. It's a great opportunity, we have awesome funding and I have no regrets about it.

But I don't want to remain stagnant in my knowledge. What are some topics in CS that I can self-learn? What are some great OCW courses/textbooks/resources I can use to continue learning about advanced CS topics?

Here's what I have taken already:
Discrete Math, Data Structures and Algorithms, Intro to Computer Architecture, Intro to Artificial Intelligence.
