Vanderbilly is not only fun, easy to use, 100% free, but also the coolest online guitar video lessons web site in the world!
Vanderbilly
Chordify
This site turns any music or song (youtube, soundcloud, mp3) into chords. Play along with guitar, ukulele or piano using our intuitive playback interface.
Jellynote
A site dedicated to helping you learn to play music and makes practicing your skill fun!
Songster
Songster - This amazing tab site makes it easy to learn new songs for multiple instruments
Soundslice
Check out this awesome interface for learning guitar tabs that syncs the tablature with videos of the song!