Advertising Photographers of America, Los Angeles

American Society of Composers, Authors, and Publishers (ASCAP)

The American Society of Media Photographers (ASMP)

Association of American Publishers

The Authors Guild

Broadcast Music Incorporated (BMI)

Copyright Clearance Center, Inc.

Friends of Active Copyright Education (FAŠE)

Graphic Artists Guild Home Page

The Harry Fox Agency, Inc.(HFA)

Motion Picture Association of America

The Music of Television & Radio

The National Music Publishers' Association(NMPA)

Picture Agency Council of America

Recording Industry Association of America

United States Copyright Office Home Page

United States Patent and Trademark Office: Kids Page