The “Top Ten” Most-Produced Works in North America for 1980-1981 through 2003-2004 Seasons.

Opera America (Arts Education Leadership), many resources
Instruments of Expression the Opera Voice
Coloratura Soprano
Opera Glass – Opera Information
Undone Divas
Kids Opera

Aida by Verdi
Aida and Its Relevance to the World Today - Nine 45-minute class periods 
Information about Verdi and Aida
Tribute to Verdi