Music Publishers
- A-R Editions
- Boosey & Hawkes, Inc.
- Breitkopf and Hartel
- Cherry Lane Music
- G. Schirmer, Inc. and Associated Music Publishers, Inc.
- Hal Leonard Online
- Henle Verlag
- MMB Music, Inc.
- Music Publishers Association (Directory of Music Publishers)
- Music Publishers Association - United Kingdom
- Music Publishers Web Sites (Indiana University)
- Theodore Presser Company