A Miraculous Method of Singing, California Throatsinger, Cole, Jim and Spectral Voices, Healing sounds, Overtones Researches, Purce, Jill: The Healing Voice, Rees, Ariane, The Throat Singers of Tuva, The Universe of Harmonic Chant

Afrocentric Voices in Classical Music, Big Ears, Cathrine Sadolin Vocal Technique, Dwayne's Singing Page, Ernie Halter - "Real Life Show Biz", Hoarseness Prevention & Treatment Tips, Invisible World, MusicalSingers.com, National Association of Singing Teachers, Repertoire Online

Alexander Technique for Singers, BriVocals School of Voice Production, Dwayne's Singing Page, Gilbertson, Brian: Singing tip of the week, Jeannie Deva: Voice Studios, Perfect Voice, Singers, Singing Teachers and the Alexander Techni, The Singer's Workshop, The Voice