Another use for guitar instructors is the possibility to overlay their webcam and use Fret Sage in live streams or recorded video lessons.
Note though that there is no direct support built into Fret Sage for using webcams with it. However, I did leave plenty of room for users to overlay their webcams when using their favourite recording or steaming software.
This and the Snapshot function are two things that I feel will make this software as beneficial to instructors as it is for those just looking to study the fretboard themselves.