1. String instrument making in Canada - Encyclopedia of music in Canada - thecanadianencyclopedia.com
2. The initiation of a violin maker - centrum.is
3. Maker index - National Music Museum - usd.edu
4. History of Mittenwald Violin Making - matthias-klotz.de
5. Introductory Bibliography of Mittenwald Violin Making - matthias-klotz.de
6. Early history of the violin in Italy - gussetviolins.com
7. Historic violin makers - allviolin.com
8. Dictionary of violin makers and bow makers - musicforstrings.com
9. Violin Makers Named Glass - si.edu
10. famous violin Makers - berkeley.edu
11. Australian Violin and Bow Makers - abcviolins.com.au
12. Makers Biographies - Stradivari - Guarneri - Amati - Klotz - ourworld.compuserve.com/homepages/tarisio 
13. Bolognese Lutherie in the 19th and 20th Centuries - ilsuonodibologna.org
14. The origins of Bolognese Musical Instrument Making - ilsuonodibologna.org
    

•  General Information on Obtaining Authentication and Appraisal of Violins - si.edu/Encyclopedia_SI
• Authentication and Appraisal of Violins - si.edu/Encyclopedia_SI : 
   Violin Makers of the Bergonzi Family
   Violin Maker Gasparo da Salo
   Instrument Maker Gaspard Duiffopruggar
   Violin Makers Named Gagliano
   Violin Makers Named Glass  
   Violin Makers of the Hopf Family
   Violin Makers of the Klotz Family
   Instrument Maker Giovanni Paolo Maggini
   Violin Makers of the Ruggieri Family
   Instrument Makers of the Stainer Family
   Violin Makers Named Vuillaume

• Smith, Arthur Edward (1880? - 1978) - adb.online.anu.edu.au
• G.B. Guadagnini - his life and cello making - aitchisoncellos.com
• Giuseppe Fiorini - en.wikipedia.org

1. Amati, Nicolò - answers.com
2. Amati tribute - stringsmagazine.com
3. Tracing the family Amati 1641 - 1686 - vsa.to
4. Images from The Rawlins Gallery - violins and violoncelle by Andrea Amati - National Music Museum - usd.edu
5. A Brief History of the Quartet of Amati Instruments owned by the University of Saskatchewan -amatiquartet.usask.ca
6. Violin Makers of the Amati Family - Authentication and Appraisal of Violins - si.edu/Encyclopedia_SI

Guarneri Family

1. Guarneri - answers.com
2. The violin makers of the family Guarneri - guarnieri.com
3. Guarneri Family of Violin Makers - Authentication and Appraisal of Violins - si.edu/Encyclopedia_SI

Antonio Stradivari

1. So, you found a Stradivarius violin! afvbm.com
2. Antonio Stradivari - answers.com
3. Antonio Stradivari - nndb.com
4. The Stradivari Society - stradivarisociety.com
5. Stradivarius Violins - Authentication and Appraisal of Violins - si.edu/Encyclopedia_SI
6. "stradivari" ? ourworld.compuserve.com
7. Stradivarius: Unsurpassed Artisan or Just Lucky? - serendip.brynmawr.edu
8. Science and the Stradivarius - physicsweb.org
9. William F. Fry: A Physicist's Quest for the "Secrets" of Stradivari - digicoll.library.wisc.edu
   
    

•   20th century luthiers (bowed instruments) - en.wikipedia.org

1. Christophe Landon, a French in New York :Christophe Landon, luthier: an artisan's quest for the Grail...
2. Christophe Landon: Craft & Patience The Art of Making Violins
3. Christophe Landon re-thinks instrumental forms with Dennis Rooney
4. Christophe Landon: Modern Makers Revolutionize the Violin

• Etienne Vatelot: Taking life by the strings - iht.com