The Aaron Copland Collection at the Library of Congress
Musical sketches and manuscripts, letters and other writings, biographical and scholarly information, photographs, and related material from the Music Division of the Library of Congress.
Oral History in American Music, Yale University
Vivian Perlis, Founder and Director. An unparalleled resource in recorded interviews with American composers.
Boosey & Hawkes
For information about sales, rentals, licensing, copyright clearances, and related areas, from Copland's long-time publisher.
Aaron Copland Fund for Music
For information on grant opportunities supporting American music projects.
New Music USA
News, opportunities, and support for the American composer.
Russell Gordon Piano Workshop
Official Piano Technician of Copland House.
The designer of this and many other sites.