Rob MacKillop's websites:
www.rmguitar.info - general
www.songoftherose.co.uk - mp3 and video
www.ClassicBanjoRM.com - 19th-century banjo music
www.FingerstyleUke.com - books, mp3 files, videos for figerstyle ukulele
Fernando Sor sites:
Sor, Teaching, and the Enlightenment - an essay by Brian Jeffrey of Tecla Editions
YouTube performance of a Sor piece for Harpolyre - and another
An unknown French song by Sor in Sweden
A discussion of Sor's Mozart variations, Op.9 by Arthur Ness
19th-Century Guitar sites:
Early Romantic Guitar Information Site
Luthiers
Simon Ambridge - maker of the Panormo copy used on my mp3 files and videos
String Makers
Aquila - the finest gut strings in the world
Publishers
Tecla - includes the biography of Sor by Dr Brian Jeffrey - essential reading