Peter Bennett
- Concert glass harpist and street entertainer. Includes biography, performance schedule, sound clips, CD ordering, and a lesson plan for teachers.
- http://www.glassharper.com/index.html

Brien Engel
- Biography, recordings, and a curriculum guide for school performances by the glass harpist.
- http://www.glassharp.org/

The Chrysler Museum of Art: Grand Harmonicon
- Photograph and history of the instrument developed and manufactured by Francis H. Smith in the early 1800s. Includes a score, resources, and brief discography.
- http://www.chrysler.org/wom/wom1200.asp

The World of Glass Music
- Profile of glass musician Clemens Hofinger, reviews, upcoming performances, and audio samples. Also includes history, photographs and descriptions of the armonica, glass harp, and verrophone. [English/German]
- http://www.glasharfe.de/index.htm

Glass Music
- Profiles of Martin Hilmer and Beate Fürbache, their performance programs, historical development of glass music, and descriptions and photographs of musical glasses, the euphone, and the verrophone. [English/German/Japanese]
- http://glasmusik.com/