Phonographic Performance Ireland - Organization protecting the copyright of Irish and multinational recording companies. Legal information, awards, terms of membership. - http://www.ppiltd.com/
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. - http://www.mpa.org/
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 l - http://www.ascap.com/
National Music Publishers' Association - Currently representing over 800 American publishers; site includes information about membership, and activities. - http://www.nmpa.org/