Collection of links which might be helpful:

APRA - The Australasian Performing Right Association

AMCOS – The Australasian Mechanical Copyright Owners Society

MPA – Music Publishers Association (UK)

NMPA – National Music Publishers Association (USA)

MPA – Music Publishers Association (USA)

CMPA – Canadian Music Publishers Association

APEM – Association Des Professionnels De L’Edition Musicale (Canada)

Australian Copyright Council

SPAA - Screen Producers Association Of Australia

EMI Music Publishing

Universal Music Publishing

The Music Sales Group