Absolutely Understand Guitar
- Library of 32 hour long titles with 100 page book including theory, technique and ear training.
- http://www.absolutelyunderstandguitar.com/

The Natural Approach to Guitar
- It's a set consisting of three videos, two manuals and one rhythm audio cassette for to learn improvisation for all styles.
- http://www.thenaturalapproach.com/

Lamb Productions
- Eight videos teaching the art of playing acoustic guitar in blues style.
- http://www.theguitarworkshop.com/

Slide Guitar as a Second Language
- Aster Productions is proud to offer an all new guide to learning slide guitar: a two hour instruction video devoted exclusively to "behind the bar fretting" in standard tuning.
- http://www.radioyur.com/sgsl1.html

Metal Method
- Video guitar lessons, weekly free lessons include tablature, wav, and mp3 files.
- http://www.metalmethod.com/