Guitar Consultant - Will Landrum offers a great resource for guitar players to learn how to shred.

Hot Frets - Learn to Play the Guitar Online the Interactive Way.

Guitar Secrets - Lead Guitar Made Easy and free online guitar lessons.

Chord Inversion - Learn to play chords, save your favorites, print them, define your own tuning, switch between vertical and horizontal fretboard and listen to them!

Guitar For Beginners - Guitar for Beginners and beyond. The plain English guitar instruction site.

Chord Find - An interactive guitar chord dictionary.

Guitar Masters - A nice resource dedicated to various important guitar playing essentials.

Rocking With The Cross - A Christian guitar tablature website with over 10,000 tabs for guitar and bass.