ASCAP
The American Society of Composers, Authors and Publishers

BMI
Broadcast Music, Inc.

Dramatists Guild of America
The Professional Association of Playwrights, Composers and Lyricists

NewMusicals.co.uk
Home of the Vivian Ellis Prize in London

Copyright Office of the United States
General Information

Library of Congress
Copyright Forms

American Music Center
Bhilding a National Community for New American Music

Playbill On-Line
The Theatre Source on the Web for Broadway Theatre Information