http://www.jazztet.de/english/main/education/education.htm

The Seven Secrets Of Jazz And Soul - by Eddie Landsberg
http://www.geocities.com/onlinemusiclessons/

The Jazz Piano Book, The Jazz Theory Book - by Mark Levine

Gesangsausbildung School of Natural Voice:
http://www.keysnovello.com/school-natural-voice.htm
http://www.keysnovello.com/select-vocal-coach.htm