BohemianOpera.com
Various opera resources and links, with a focus on La Boheme and Madam Butterfly. As well as an index of classical and opera music used in movies.
Cantolopera - Opera Karaoke
Italian Opera site whose project enables listeners to sing over opera arias instrumental versions, the opera karaoke tracks, using various multimedia supports.
Lorgnon - Travel for the Opera
Specializing in individual trips to opera cities such as Munich, Berlin, Dresden, Milano, Wien and Salzburg.
Opera World
List of operas broadcast on television, radio, and the Internet with information and links, distance learning courses, live opera schedule database, mailing list, and links.
OperadiO.com
Seven live radio channels on the internet of the best opera and classical music.
Operissimo
Searchable database of performers, composers, compositions, and opera houses.