See also:

• Arts: Music: Styles: O: Opera: Houses and Companies  (183)

• 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 - A community-based musical organisation offering operatic training and concert work, based in Nottingham, England. Audio clips, events schedule and CD-ROM.
• 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.
• The Northern Virginia Opera Guild - Non-profit organization which seeks to bring opera to the region and develop support for the performing arts. Includes profiles, events past productions, membership information, resources, reviews and contact details.
• 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.
• 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]
• University of York Opera Society - Society for people who enjoy taking part in, being in the technical team, directing, producing or simply watching opera in and around the University of York.
• 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.