The Singing Voice  
   The castrati's place in the history of singing and a RealAudio example of the last castrato, Alessandro Moreschi.
   http://www.worldzone.net/music/singingvoice/castrati.html

Urological Sciences Research Foundation: Castrati Singers of Italy  
   Article about the use of castrated male singers for singing alto in church choirs during 17th and 18th century Italy. RealAudio sample from Allessandro Moreschi. The life story of Carlo Broschi, known as Farinelli.
   http://www.usrf.org/news/010308-castrati.html

Boy Choir Costumes  
   History of the castrati and their influence on music from antiquity through the banning of the practice in 1903.
   http://histclo.hispeed.com/act/choir/hist/choir-histcas.html

The Male Soprano Page  
   Information and discography on modern singers reviving the lost art of the castrati. Bibliography for castrati literature. Biographies for current and past adult male sopranos.
   http://www.linmpi.mpg.de/~kopp/disc/

Castrati and Countertenors  
   Chat and forums for people who love the high male voice.
   http://groups.yahoo.com/group/castratiandcountertenors/

Angelo Manzotti  
   Sopranist, singing the historic repertoire of castrati: includes pictures, discography, performance schedule.
   http://manzotti.callistomusica.com

All You Would Want To Know About the Castrati  
   Includes FAQ, pictures and biographies, bibliography, and links.
   http://www.velluti.org/index.htm