Clavichord

  Clavichord
Wikipedia: Clavichord
Boston Clavichord Society
British Clavichord Society
Clavichord International Press
Clavichord Technique and Performance Practice: An Annotated Bibliography
Deutsche Clavichord Societät
How to build a clavichord
Harpsichord and Clavichord WebRing
Clavichord Businesses
Google Scholar: Clavichord
Google Blogs: Clavichord
Google Books: Clavichord
Google Images: Clavichord
Google Video: Clavichord
Clavichord Sheet Music
Clavichord CDs
Clavichord Books

Clavicytherium

  Clavicytherium
Clavicytherium
Wikipedia: Clavicytherium
Clavicytherium Businesses
Google Scholar: Clavicytherium
Google Blogs: Clavicytherium
Google Books: Clavicytherium
Google Images: Clavicytherium
Google Video: Clavicytherium
Clavicytherium Books

Harpsichord

  Harpsichord
Wikipedia: Harpsichord
The Harpsichord
British Harpsichord Society
History of the Harpsichord
A Brief History of the Harpsichord
The Baroque German Harpsichord
Wikipedia: Harpsichord concerto
Building a harpsichord
Big Duck's Harpsichord Miscellany
Harpsichords mailing list
Harpsichord Tuning and Repair
Google Directory: Harpsichord
Harpsichord and Clavichord WebRing
Harpsichord Businesses
Google Scholar: Harpsichord
Google Blogs: Harpsichord
Google Books: Harpsichord
Google Images: Harpsichord
Google Video: Harpsichord
Harpsichord Sheet Music
Harpsichord CDs
Harpsichord Books

Hurdy-Gurdy

  Hurdy-gurdy
Wikipedia: Hurdy gurdy
The Hurdy Gurdy
Over the Water Hurdy-Gurdy Association
Marcello Bono's Hurdy-Gurdy Homepage
The Hurdy Gurdy Explained
The Hurdy-Gurdy
Building a Hurdy Gurdy at home
The hurdy-gurdy
Google Directory: Hurdy Gurdy
Yahoo!: Hurdy-Gurdy
Hurdy Gurdy Businesses
Google Scholar: Hurdy-Gurdy
Google Blogs: Hurdy-Gurdy
Google Books: Hurdy-Gurdy
Google Images: Hurdy-Gurdy
Google Video: Hurdy-Gurdy
Hurdy-Gurdy CDs
Hurdy-Gurdy Books

Organ

  Organ
Wikipedia: Pipe organ
Organ Historical Society
American Guild of Organists
Early English Organ Project
Organ History
Google Directory: Historic Organs
Yahoo!: Organ
Organ WebRing
Pipe Organ WebRing
Early Organ Businesses
Google Scholar: Early Organ
Google Blogs: Early Organ
Google Books: Early Organ
Google Images: Early Organ
Google Video: Early Organ
Organ Sheet Music
Organ CDs
Organ Books
Subscribe to Organ

Portative Organ

  Portative Organ
Wikipedia: Portative organ
Wikipedia: Positive organ
The Organetto
Portative Organ
How to Build a Portative Organ
Google Directory: Portative Organs
Portative Organ Businesses
Google Books: Portative Organ
Google Images: Portative Organ
Google Video: Portative Organ

Regal

 
Wikipedia: Regal
Regal Businesses
Google Scholar: Regal
Google Blogs: Regal
Google Images: Regal

Spinet

  Transverse Spinet
Wikipedia: Spinet
Spinet
Making the 1690 Cristofori Oval Spinet Copy
Spinet Businesses
Google Scholar: Spinet
Google Blogs: Spinet
Google Books: Spinet
Google Images: Spinet
Google Video: Spinet
Spinet Sheet Music
Spinet CDs
Spinet Books

Virginal

  Virginal
Wikipedia: Virginal
The Virginal Tracker Project
Virginal Businesses
Google Scholar: Virginal
Google Blogs: Virginal
Google Books: Virginal
Google Images: Virginal
Google Video: Virginal
Virginal Sheet Music
Virginal CDs
Virginal Books

Other
Midwestern Historical Keyboard Society
What Are Historical Keyboard Instruments
Southeastern Historical Keyboard Society
Harpsichords and Related Topics List
Sounds of Harpsichords and Related Instruments
Wikipedia: Keyboard instrument
Early Keyboard Instrument Businesses
Google Directory: Early Keyboard Instruments
Google Scholar: Historical Keyboard Instrument
Google Blogs: Historical Keyboard Instrument
Google Books: Historical Keyboard Instrument
Google Images: Early Keyboard Instruments
Google Video: Historical Keyboard Instrument

For other instruments, see:  Brass, Keyboard, Percussion, Strings, Winds, Mixed.