Learn - Educational program of the Arizona Opera includes synopses, biographies, and external links, pronunciation guide, terminology, FAQs, surtitles, lecture series, and Opera for Kids. Internal resources include MP3 audio, MOV video, and PDF study guides.

OperaGlass - Includes libretti, source texts, performance histories, synopses and discographies plus pictures and background information. Extensive links to composers, librettists, operas, opera companies and opera people. From Stanford University.

The Aria Database - A searchable database of arias, each includes vocal part and contextual information. Some have sound files and translations.

ChevronTexaco Opera Information Center - Developed by the Metropolitan Opera Guild. Includes radio broadcasts, station finder, broadcast news, and an archive in English, Spanish, French, and Portuguese with composer and background information, sound clips, and teaching materials.

Culturevulture.net - Opera - Opera reviews, graphics, schedules, links.

MetManiac - Metropolitan Opera broadcasts database including a complete radio/television program list, message board, features, and schedules for future seasons.

Opera Japonica - Coverage of opera in Japan; includes monthly schedules, reviews, interviews, international reports, and multimedia files.

Opera Reviews @ musicOMH.com - Opera reviews from the Royal Opera House, The Coliseum and Glyndebourne.

OperadiO.com - Seven live radio channels on the internet of the best opera and classical music.

Opera-L - Details of the Opera-L mailing list and how to subscribe, plus photos, files and links.

Operanet - Opera news, features, opera reviews, interviews of leading opera stars and directors, opera CD reviews, the 101 best opera CD guide for building the ideal CD collection, extensive opera calendar and reviews by international critics and journalists.

Operas and Composers: A Pronunciation Guide - AIFF format sound clips of names of operas and composers being spoken.

OperaTalent - Information about opera and people in the industry, from singers to stage managers. Covers auditions, events, broadcasting and in-depth reviews, articles and interviews.

Operissimo - Searchable database of performers, composers, compositions, and opera houses.

The Royal Opera: Opera Synopses - On ongoing collection, starting with the 2001/2002 season in London, UK.

SoYouWanna: Learn About Opera? - One-page introduction to opera for the novice, with explanations of its history, performers, and classic works.

Suite101: Opera - Articles, links and discussions about opera.