Hi, glad you've started this. I can think of a few other categories you might want to consider adding:

1) LTC/SNF/ALF/whatever you want to call it--residential care settings--we're isolated enough out there in the non-acute world!

2)Nurses going back to school for advanced degrees

3) AP nurses

4) Academic nursing (not just students, but what about us faculty/researcher types?)

OK, that's enough for now