Historic Opera Images  
   An opera reference site featuring early opera and composer postcards and photographs as well as opera singer listings.
   http://www.geocities.com/Vienna/Opera/9171

The Legacy of the Diva  
   Opera's recorded legacy. Articles and surveys of aria recordings especially from the coloratura repertoire.
   http://www.divalegacy.com/

Metropolitan Opera History  
   A history of one of the world's leading opera companies.
   http://www.metopera.org/history/

Opera - A Philatelic History  
   A history of opera as shown on postage stamps of the world.
   http://home.prcn.org/~pauld/opera/

Opera Timeline  
   A chronology of important dates in the history of opera.
   http://www.pbs.org/wnet/threetenors/time-content.html

Russian Opera  
   A brief history and some musical samples.
   http://russia-in-us.com/Music/Opera/

Evolution of Opera  
   Overview of the development of the operatic form.
   http://members.tripod.com/~dorakmt/music/opera.html

Chinese Opera  
   A brief history.
   http://www.hamilton.edu/academics/Asian/OpProg2.html

Tenorland  
   Historical information on famous tenors from the past.
   http://tenorland.com/

The Rise of Light Opera  
   A history of the development of the comic opera.
   http://www.imagi-nation.com/moonstruck/spectop001.html

Timeline of American Opera  
   A chronology of important dates in the history of American opera.
   http://www.hapka.com/usopera/timeline.html

Historic Opera  
   Archived images of historic opera singers, composers, and set designs.
   http://www.historicopera.com/

The Story of Italian Opera  
   Overview from the Baroque through the Romantic periods. Highlights noted composers and individual operas while emphasizing the central position of Italy in the development of the genre.
   http://www.pirandello.com/opera.html

Collecting Operas on Vintage Postcards  
   An illustrated introduction to collecting early 20th century European historical opera postcards.
   http://www.luckymojo.com/operacards.html