As we flip our courses upside down, and look for opportunities for all of us to become both active learners and teachers, these are some sources that you might want to start looking at:
Raspberry Pi Community
There are thousands of awesome resources on the net that could directly apply to this class. As you expand your learning, please feel free to share any "cool" sites with me and I'll post them here for the rest of the class.
This will be the on-line binder for TEJ3/4MI