American Guild of Musical Artists: AGMA is the labor organization that represents the men and women who create America's operatic, choral and dance heritage.
Opera America, The National Service Organization for Opera - a wonderful source for all opera singers.
If you need to learn a choral part in opera or oratorio on your own - use this site. You can click on the voice part you want to learn and you will hear it highlighted over the other parts.
IPA Source is the web's largest library of International Phonetic Alphabet (IPA) transcriptions and literal translations of opera arias and art song texts. A great site in helping you with your translations.
An online audition manager for young artists and emerging professionals. You definitely want to join this site!
Website of David Jones, Voice Teacher and Vocal Pedagogue, where you will find many excellent and informative articles on voice and vocal pedagogy.
Website of Conductor Murry Sidlin, President and Founder of the Defiant Requiem Foundation and creator of the concert/drama "Defiant Requiem". (I have performed this many times all over the world. And I designed the website!)
A great site if you are looking for rehearsal space.
A great site where you can download nearly any song you want in almost any key you need for about $6.00.
The Aria Database is a collection of information about opera and operatic arias. A great site in helping you translate and learn about arias and operas.
Classical Singer Magazine and online site is a must for young singers. They list auditions, information on music schools and universities and great articles on singing and music that will help you learn.
I think you will find these website links helpful and informative.
My favorite rehearsal space in Manhattan.
A site that has excellent information on the Alexander Technique.
The Lied, Art Song, and Choral Texts Page is an archive of texts used in 87,931 Lieder and other classical art songs. Another MUST for a singer.