Originally Posted by: markm0926
I've been playing for over 30 years, but know nothing about scales, majors, minors.
...
Think this is a good place to start before going onto scales?
Any other suggestions for a long time player new to theory?

Hey, Mark!

Learning your fretboard is definitely a great place to start! If you haven't already, I encourage you to work through Guitar Fundamentals 2. It starts with theory for beginners (intervals, scales, chords theory).

www.guitartricks.com/course.php?input=2

Later on, it works through how to practice scales in order to develop your knowledge & skill together. This is an important aspect of studying theory: to know how to apply it, to use it to understand how & why the things you do with your fingers actually make the sound you want.

Hope this helps! Have fun. :)