All About Opera:
Your Gateway to Opera on the Web.

Operalia:
Official website for Plácido Domingo's World Opera Competition.

Opera America:
A non-profit organization supporting the creation, presentation, and enjoyment of opera.

Opera Base:
An astonishingly huge opera resource, providing news and reviews, a searchable data base of schedules and links. Many sections available in multiple languages.

Opera Glass:
Home of the "Operaglass List", where people around the world have contributed their opera synopses, libretti, performance histories and more.

Opera House:
The KCSN Opera House is the place where you'll hear the finest full–length performances of the world's most famous operas, as well as many overlooked treasures.

Opera Magazine:
The world's leading opera magazine online.

Opera News:
News and highlights direct from The Metropolitan.

Opera Stuff:
Database of opera houses, singers, links and more.

Operissimo:
The world's most complete and constantly updated opera and concert database.