81. Real time measurements of the vocal tract resonances during speech.
http://www.phys.unsw.edu.au/~jw/Eurospeech.html
Auditory feedback is a model of standard language teaching in which students hear a sound and attempt to imitate it. This is a method that they have been using all their lives. Vocal tract feedback, on the other hand, is a new type of feedback and involves novel coordination between eye and articulation. This article contains charts.

82. “Resonance versus “Squillo”
http://vocalway.com/issue14.htm
Send students to the finest universities and conservatories in the world and they are told that they study with a dinosaur; that we don’t really sing that way anymore. Why? It feels wonderful in the throat and on the body. It frees one to truly express the music and text and one can be heard without microphones. Doesn’t anyone see that microphones are justifying weakness?

83. Discussing the nature of Resonance
http://www.ibluegrass.com/bg_posting3.CFM?p__i=1046&p__r=&p__a=vocal
Vocal Point, advice on what causes resonance with exercises

84. Constrictor / Tongue Relaxation Exercises and Tips
http://www.vocalfocus.com/relax.html
How to relax and keep your tongue relaxed throughout the day.

85. A critical view of the yawn-sigh as a voice therapy technique
http://webperso.easyconnect.fr/baillement/voice/voice.html
The yawn-sigh as a voice therapy technique has had increased usage in recent years, particularly with voice problems related to vocal hyperfunction. The technique appears to be especially effective in counteracting the tension symptoms of elevated larynx and constricted vocal tract that so often characterize vocal hyperfunction.

86. Training the Out-of-Tune or Uncertain Singer
http://www.spectrum-music.com/CRWinter1997-98.html
The out of tune or uncertain singer is probably the largest single dilemma facing the music educator. In order to teach students to sing in tune, one must first understand what causes pitch disorientation.

87. Releasing Tension for Singers
http://www.vocalist.org.uk/releasing_tension.html
Can anyone suggest an exercise to unlock the top range without tension???

88. Vibrato - Warble or Not!
http://www.vocalist.org.uk/vibrato.html
 Everyone is born with a 'natural vibrato' which by using the voice freely and practicing vocal exercises gradually improves the strength and control of their voice and subsequently the vibrato over a period of time, (it can take years!), and however, some singers seem to have 'pure' voices with no 'vibrato'.

89. Power Breathing
http://www.voicelesson.com/html/lessons/free_lessons_08.htm
Power lunch. Power walk. Power nap. Hey, as long as we’re making ourselves feel powerful by renaming natural activities, allow me to introduce my superturbo, patent-pending breathing technique for singers.

90. Belting: How Singers Can Safely Belt
http://voicestudio.kristinaseleshanko.com/Belting.htm
Unfortunately, there's a lot of misinformation out there about a type of singing called "belting." Much of what you've heard is likely myth. I hope this article will dispel some of that myth and give you a better understanding of this type of singing.