So, I pulled the trigger and got a used but good condition RB67 6x7cm MF film camera. Awesome! Shot this weekend with it, both B&W film (need to drop it off today) and the Fuji instant develop film. I got started thinking though, filters were a lot more useful with film, since a lot of what you can do digitally with RAW files (color levels, whitebalance, etc) you can't do with film. So, where's a good point to start learning about the different filters and how to use them with color and B&W film?
As a note, I decided to get the 3-volume Ansel Adams photo books. I'll probably mostly start with The Negative, but I will read through the other 2 as well.