The theory course is an ongoing project here at LearnCigarBoxGuitar.com. I believe that learning music theory should be acessible to all and so I've made it a free resource for anyone willing to give it a go. It is referenced throughout other courses and workshops on the site so subscribers will eventually become extremely familiar with it.
It is still however a work in progress. Here is the current status:
Harmonic Theory - The study of pitch in music includes drilling down into the major scale, building chords and arpeggios and plenty more. It's ready to go.
Duration - The study of music moving in time, essentially it's all about rhythm. The first draft is done but I've still a bit to do
Reading the dots - Next on the list.