ASCAP
The American Society of Composers, Authors and Publishers is a performing rights organization which licenses and collects royalties for performance of its members' music. Contains a database of music in the repertory and information about membership and licensing. Includes articles about the music business.
Music Publishers' Association
Information about music publishing, copyright laws, editorial standards, and the correct use of printed music. Also contains a guide to copyright searching.
National Music Publishers' Association
Currently representing over 800 American publishers; site includes information about membership, and activities.
Phonographic Performance Ireland
Organization protecting the copyright of Irish and multinational recording companies. Legal information, awards, terms of membership.
Swedish Music Publishers Association
Site offers information about members, and activities.