ClearanceDept.com - Specialize in obtaining music rights for clients in all media including film, television, digital media, Internet and commercial advertising.
Click&Copyright - Provides a filing service for submitting works to the U.S. Copyright Office.
Copyright Aid - Information about copyright law, protection, registration, licensing, infringement and other aspects of intellectual property in the United Kingdom.
Copyright Protection Services International - Supplier of tamper proof security envelope to secure your work and prove at a later date that the contents have not been tampered with. FAQs, price, and contact details.
The Copyrights Group Ltd. - Independent licensing agency based in the United Kingdom that represents writers, artists and corganisations for licensing to manufacturers and consumers.
Copyscape - Search engine to locate duplicated materials on the Internet.
HRC Watch - Database of contact information for the copyright holders of authors and artists whose works can be found in libraries and archives across North America and the UK.
Indiana University - Copyright Management Center - Provides information and education services about copyright, fair use, and infringement. Aimed at the university sector, but has information for all.
Infringement Watch - Washington DC based non-profit organization of visual arts businesses dedicated to the control of members' copyright images.
IP Innovations - Washington, D.C. based research company offering a title search facility to check for prior use.
Lawmart.com - Search and document delivery service for patents, trademarks and copyrights.
Legacyworks - Consultants in copyright termination, transfer of grant, publishing termination and song recapture.
NRS-Online.com - US service for protecting and authenticating intellectual property rights.
Official Software, LLC - Provides software for filing works with the U.S. Copyright Office.
ONK Copyright Agency - Turkish literary and dramatic agency. Features information about copyrights in Turkey and company background.
Protect Your Art - Service for registering work with the US Copyright Office via an online form.
UK Copyright Libraries Agency - Acts on behalf of the five major UK libraries to ensure that they receive legal deposit copies of British and Irish publications.