| American Singers Opera Project: A nonprofit program to develop American opera singers. |
| Bel Canto Society: Non-profit organization that publishes recordings and sponsors opera performances. Includes store, event listings, and CD reviews. |
| California Opera Association: Non-profit organization dedicated to artistic education and enrichment in opera. |
| Magdala Opera Trust: A community-based musical organisation offering operatic training and concert work, based in Nottingham, England. Site includes audio clips, events schedule and CD. |
| Metropolitan Opera Guild: Supports the Metropolitan Opera in New York and encourages the appreciation of opera generally. Includes educational material, news about the Met and merchandise. |
| New England Opera Club: Information about opera events, performances, repertories and recitals in the New England region. |
| New York Opera Forum: Gives classically trained singers the opportunity to learn and perform standard operatic repertoire in the original languages. |
| NewOp and C-Opera: International meeting, listserv and web ring of contemporary opera and music theater professionals. |
| OPERA America: The Service Organization for Opera: National service organization based in New York supports opera and the musical arts internationally with education and awareness programs. |
| Opera USA: A non-profit corporation whose mission is to promote, instruct, create and develop opera and musical theater for Americans. Includes performance dates, production schedules, singers listings, festivals and membership information. |
| Opera Volunteers International: A nonprofit organization of volunteers and associations which promotes opera through volunteer activities in the United States, Canada, and other countries. |
| Richard Tucker Music Foundation: Non-profit organization honoring the memory of the tenor at Lincoln Center's Avery Fisher Hall, granting awards to singers at three levels of development, and producing educational events nationwide. |
| The Opera Guild of Northern Virginia: Non-profit organization which seeks to bring the joy of opera to the Northern Virginia area. |
| Trubadur: A club for Polish opera fans, with articles, reviews and interviews from Trubadur magazine), libretti of Polish operas, recordings and discussion forum. [Polish/English] |
| Wagner Society of England: Includes membership information, history, events, links to other societies worldwide, how to buy tickets to events, and an inventory of library recordings, books and CDs. |
Classical
