| United States Patent and Trademark Office | www.uspto.gov |
| Copyright Office of the Library of Congress | www.copyright.gov |
| Internet Corporation for Assigned Names and Numbers (ICANN) | www.icann.org |
| World Intellectual Property Organization (WIPO) | www.wipo.int |
| Office for Harmonization in the Internal Market (OHIM) | www.oami.europa.eu |
| Canadian Intellectual Property Office (CIPO) | www.cipo.ic.gc.ca |
| International Trademark Association (INTA) | www.inta.org |
| The Pharmaceutical Trade Marks Group (PTMG) | www.ptmg.org |