- Britannica.com: Guglielmo Marconi
 - Biography, life, and work of the Italian physicist and inventor of a successful system of radio telegraphy. - Fondazione Guglielmo Marconi
- Dedicated to the origins and development of radiocommunications; and the archival resources relating to the history of telecommunications and to Guglielmo Marconi's life. Site in English and Italian.
- Marconi Calling
- Exploration of the man's life, his scientific discoveries, the impact of wireless, and the development of modern communications.
- U.S. Marconi Museum of Radio Communications
- From the U.S. branch of the Guglielmo Marconi Foundation.
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