Classical Guitarist: Directory of classical and spanish guitarists in the UK.
Classical Guitarists: A directory of Wikipedia articles on classical guitarists.
Classical Guitarists of the Early 19th Century: Biographies, MIDI files and guitar tablature of Fernando Sor, Mauro Giuliani, and Matteo Carcassi.
Guitar Foundation of America - Artist Pages: Links to over 300 guitarists sites. Solo artists, composers, and historic performers.