Piano Technicians Guild – official site of the PTG, a good place to learn about piano maintenance and history
Antique Piano Shop – a fascinating piano rebuilding shop with an extensive website chronicling the history of many piano builders
Fazioli Pianos: Philosophy – the new kids on the block who build some of the world’s finest pianos, their site tells all with pics and videos
Ratko Delorko: The History of the Modern Piano in 22 Instruments – two youtube videos of a show depicting the evolution of the piano from harpsichord and clavichord through to the modern piano
Bolduc Pianos – suppliers to the piano building industry world-wide and to rebuilders, specializing in the manufacture of sound boards and pin blocks. Located in the heart of the hardwood forests of Quebec.
How Pianos Are Built – a promotional video produced in the 1950s by the Rudolf Wurlitzer Company, it offers a good overview of manufacturing processes of the day. I can’t recommend their product, but the video is well done.
Other blogs by Ralph Thorn Pianos:
Wing and Son Piano – a website featuring the rebuilding of this musically significant instrument by Ralph Thorn Pianos
Nunns Square Piano – a website featuring the rebuilding of this instrument by Ralph Thorn Pianos
Broadwood 507 – a website featuring the rebuilding of a beautiful 6′ grand from the mid-19th century
Mason and Risch Square Grand – a website featuring the rebuilding of a Victorian-era large square piano (this site is under construction and will be accessible soon)