TEORÍA MUSICAL
http://www.teoria.com/indice.htm
LESSONS ON LINE
http://www.jazzguitar.com/lessons.html
GUITAR CHORDS
http://www.all-guitar-chords.com
CHORD HOUSE
http://www.looknohands.com/chordhouse
HARMONY CENTRAL
http://www.harmony-central.com
EL RINCÓN DEL GUITARRISTA
http://www.guitarraonline.com.ar/tecnica.htm
FREE GUITAR LESSONS
http://www.freeguitarvideos.com
JAZCLASS
http://www.jazclass.aust.com
GUITAR LESSON WORLD
http://www.guitarlessonworld.com