• Advice for Students Acting in Opera
• How to Learn Vocal Music
• How to Memorize Vocal Music
• How to Practice Voice
• Meaning of Vocal Technique, The
• On Becoming a Singer
• Operatic Acting
• Physical Exercise for Singers
• Singing Without Technique
• Tao of Singing, The
• Technique
• Uncertainty Principle and Singing, The
• Worksheet on Song Interpretation

Estill Voice Training Systems by Jo Estill.
FAQ for Young Singers by Cindy Sadler.
Five Minute Voice Lesson by Ernie Halter.
Instant ebook reveals innovative secrets of singing on pitch.
Jam Vocal School (French/English) 
MusicTeachers.co.uk
MusicWorld Vocal Instructors Directory
OPERALAB by Gilles Denizot [.pdf format].

• Becoming a Master Teacher
• Beginner Singer, The
• From Studio to Stage: The Path of the Professional Singer
• Learning to Sing via Internet
• Mouth Posture in Singing
• Notes on Vocal Identity
• Of Vocal Registers
• Oral Cavity in Singing
• Posture and Breath
• Teacher-Singer Partnership>
• Tristan, the Heldentenor, and Lauritz Melchior
• Vocal Warm-up

Quick Intro to Speech-Level Singing by Dave Stroud.
Singing Success by Brett Manning.
Total Singer, The - Voiceworks Method® by Lisa Popeil.
Undone Divas, The by Madelene Capelle.
Voice Teacher, The by David Jones [German Translations].

• Achieving Balance in the "Ah" Vowel
• Acoustical Deception in Singing Onstage
• Alan Lindquist: A History of the Technique
• Alternative Medicine: Playing a Critical Role for the Voice Teacher or Singer
• Applying Technique to Repertoire
• Artistry of Jussi Bjoerling
• Attack or Onset of Sound, The
• Breath and Support
• Breath Management
• Characteristics of the Leggiero Tenor
• Counter Tenor, The: Vocal Issues and Answers
• Cuperto, The
• Damaging Vocal Techniques
• Danger of Singing Heavy Repertoire with a Lyric Voice, TheDanger of Under-Singing Large or Dramatic Voices, TheDangers of the Flat or Retracted Tongue, The
• Dramatic Voices
• Female Lower Passaggio
• Flagstad & Garcia's 'Coup de Glotte'
• How to Vocalize a Choir and Keep Vocal Health
• History of the Swedish/Italian School of Singing
• Legato Line
• Lower Voice or Higher?
• Male Voice Protection: Understanding the "Cover"
• Master Teaching: The Lost Art
• Maturing Dramatic Soprano Voice, The: Challenges and Solutions
• Nasality in the Tenor Voice
• Passaggio, The
• Psychological Abuse
• Psychological Hints for Teaching Singing
• Recuperating Damaged Voices
• Renee Fleming
• Right of Entitlement Singer vs. Professional Mind, The
• Saving A Voice Teacher's Energy
• Searching for a Good Voice Teacher
• Self-Supervision and the Singer: The Safety of Intelligent Practice
• Shaking Jaw and Tongue, The
• Singing Dramatically without Pushing the Voice
• Special Considerations in the Vocal Training of the Bass Singer
• Specific Issues Concerning the Professional Baroque Singer
• Striving for Balance in Teaching Singing
• Taking a Professional Coaching and Protecting Your Voice
• Understanding and Solving Problems in the Middle Register
• Understanding the Helden Tenor
• Understanding the Whistle Register Phenomena: Dangers and Advantages
• Understanding Vibrato
• Vennard and Lindquist
• Vocal Acoustics in the Theater
• Vocal "Wobble": Causes and Solutions, The
• Vocalizing through Menopause: Regaining Lost Vocal Function
• Working with Diplophonia