Art's Theremin Page
Modern circuit designs for the theremin.

Theremin Enthusiasts Club International
Information about the club and the instrument.

Theremin.info
Buy a theremin, music, books, CDs, and a large archive of related materials, including a number of sound files to download.

Theremin World
Theremin information including bands who use them, photos and sound, message boards, where to buy theremins, how to build theremins, and a growing registry of the original RCA models.

Maxies Pages
Information about the theremin, including articles, schematic diagrams, players, links, books and examples. Also home to the Theremin Web Ring

The Musical Saw and Theremin Page
Information about theremins and musical saws. History, news, soundfiles, and upcoming performances.

Moog Music
Owned and operated by Robert Moog, manufactures theremins and other high-quality electronic musical instruments.

Levnet -- Friends of the Theremin
The oldest theremin forum on the internet. Full archives and subscription form.

Thereminvox.com
Articles and interviews about the theremin and other electronic musical instruments, a theremin MP3 library, a theremin web directory and a shop.

Jerry's Tube Theremins and Trautoniums
Builder of prototypes of different kinds of theremins and 2D21 Thyratron-tubed audio devices. Working on several versions of Trautoniums and Tannerins. Usually sells prototypes on Ebay. Uploading new images with progress.

Virtual Theremin
Downloadable theremin emulator (Windows) as well as the history of Theremin (with Flash).