In English.

The Music of East Asia.
Being Opera bij Chinavista.
Traditional Chinese Opera's.
Being Opera Main Page.
Peking Opera in Taiwan.
Chinese Folk Performances Traditions.
Modern Chinese Drama.
China Pages Peking Opera Page,.
Chinese Opera in Britain.

In Chinese and a bit English.

The official Chinese Opera Website.
Cantonese Opera Home-Page.
Kirk's Chinese Opera Page.