Pocket Publications
- Orchestral reductions of opera scores for hire and orchestral hire library.
- http://www.pocket-publications.com/

Opera~Opera
- Australian magazine offering articles on opera and plot summaries of major operas.
- http://www.opera-opera.com.au/

Opera Journeys Publishing
- Offering a full line of mini guides, opera classics and libretti. Available in print and downloadable eBook formats for purchase on-line.
- http://www.operajourneys.com/

USOperaWeb
- E-zine devoted to opera by American composers, including a calendar of worldwide performances. Current issue plus archives.
- http://www.usoperaweb.com

The Opera Critic
- Includes news, reviews and articles.
- http://www.theoperacritic.com

Amadeus Press
- Specialty publisher of books on opera, classical music, music history and biography, instruments, and performance.
- http://www.amadeuspress.com/

Opera Magazine
- News, articles and reviews from the world of opera.
- http://www.opera.co.uk

Opera News
- American magazine: subscription information, contents of recent issues. (some content for subscribers only).
- http://www.operanews.com/

L'Avant-scène Opéra
- Features libretto, with analysis, of one or two operas in each issue: sales of subscriptions and back issues.
- http://www.asopera.com