Many guitar websites offer free charts of guitar scales, including GuitarOrb.com and 8Notes.com. For guitar tabs of scales, Ultimate-Guitar.com and GuitarTab.com offer many scales in different keys and musical styles.
At GuitarOrb.com, players can find the six most common guitar scales in chart form, including the minor pentatonic scale and the blues scale. At 8Notes.com, players can find scales in all of the keys and tracks to play along with using those scales. Ultimate-Guitar.com and GuitarTab.com offer easy-to-read tabs that users can search for. To read these tabs, each line represents a string on the guitar, and the number on the line represents the fret where the player puts his finger.