Fachords - Fachords is an online site that provides many resources that you can use to take your guitar skills to the next level.
TrueFire - The Best Guitar Lessons Online Fast. Easy. Fun.
Gitarrero Beginner - Gitarrero Beginner is a multi-featured, and easy-to-use guitar school developed as a guide to help you learn guitar skills and play them comfortably.
Learn & Master - Learn & Master is an online website that offers various skills like Photography, Guitar, Ballroom Dance, Piano, Drums, and Painting.
FATpick - Tab player that listens as you play along with any guitar to provide instant feedback on your timing and accuracy
FretXMaster - The best way to learn the fretboard forever. Learn and master the notes of the guitar, while having fun.