The American Brahms Society
Contains general information, a list of publications, and Brahms research on the web.

Barbirolli Society
Dedicated to the music of Sir John Barbirolli. Contains biography, discography, and society journal articles.

The Charles Ives Society
Biography, bibliography, works, and descriptive catalogue.

International Machaut Society
Devoted to the study of poet and composer Guillaume de Machaut. Contains Machaut links and society newsletter.

Havergal Brian Society
Official site. Diary of his life, listings of compositions, and society activities.