Learning to play scales is a fundamental skill for any serious musician. For most music students, simple scales are one of the first things they learn, and routinely practicing scales is generally considered essential to developing mastery of any instrument. However, many (if not most) students find practicing scales tedious and boring. ScaleBook.com seeks to help students find methods for mastering scales that are both interesting and effective.
Free Resources
Music Theory Made Easy
Music Theory Made Easy Videos, Show You How To Internalize, Know, And Do, Music Theory In Your Head Free Videos Reveal The 4 Secrets, To Knowing All Music Theory! In Video1 Pt1: After Viewing This Free Video, You'll Know All The Sharp Major Scales.
JazzScales.com Site featuring scales used extensively in jazz including blues and bebop scales.
MusicalScales.com Has lists of dozens of scales, including an entire section of "exotic" scales, some of which you may have never even heard of.