OPERA America serves and strengthens the field of opera by providing a variety of informational, technical, and administrative resources to the greater opera community. Its fundamental mission is to promote opera as exciting and accessible to individuals from all walks of life.

The Aria Database is a collection of information about opera and operatic arias. Besides providing basic information about each aria, the Database includes translations for many arias and aria texts for those that are not affected by copyright restrictions. The Database also provides access to a collection of operatic MIDI files to give visitors an idea of what each aria sounds like.

Operabase features season details for over 400 operahouses world-wide, schedules for thousands of singers, reviews from leading newspapers and hundreds of links of opera resources on the web. Available in English, Italian, French, German and Spanish.

OperaGlass is an opera information server on the World Wide Web. Here you can get detailed information, including performance histories, synopses, libretti, discographies, pictures, and more on any of a small but rapidly growing number of operas, plus pointers to many other opera servers.

Operissimo, the site for the opera world, lists more than 400 operahouses in 45 countries with complete performance schedules. It also features information on over 21,000 operas, 6,200 composers and 14,000 performers.

Online Opera Scores: Browse through complete scores from a number of operas at the Indiana University Bloomington Libraries

The Academy of Music website offers information about its history, resident companies and performance schedules.

The Kimmel Center Manages both the Academy of Music and the new Kimmel Center for the Performing Arts which is the home of the Philadelphia Orchestra.

Yahoo! Stagecraft - information of costuming, employment, lighting, set design and more

USITT - United States Institute for Theatre Technology The mission of USITT is to actively promote the advancement of the knowlege and skills of its members

ESTA is a non-profit trade association representing the North American entertainment technology industry.

IATSE Local 8 The official website for the International Alliance of Theatrical Stage Employees Local 8, serving the greater Philadelphia area.

Lighting Links is a World Wide Web page of useful links to Entertainment Lighting information. On-line since 1994, the listing now contains links to over 600 lighting resources.

The Costumer's Manifesto website features an unbelievable amount of information on every facet of costuming, including many links to related sites.