Heaps of CG info & links at this site:
www.ga-usa.com/cglists
CG Performers, Events, Composers, Websites, Schools, Organizations, Lute pages on-line, Dealers, Flamenco Guitar, classical guitar magazines and on-line periodicals

Classic Guitar
www.classic-guitar.com
classical guitar instruction, music, instruments, and recordings

Classical Guitar Composers List
www.ele.uri.edu/faculty/sun/CGCL.html
list of composers who have composed at least one published original score for, or transcribed for, solo classical guitar.

Classical Guitar Discussion Page
www.brookes.ac.uk/schools/social/resources/de/wwwboard.html

The Classical Guitar Home Page
www.guitarist.com/cg/cg.htm

Classical Guitar Midi Archives
www.info-internet.net/~ffaucher

Classical Guitar Illustrated History
www.info-internet.net/~ffaucher/ffaucher2
contains a resume of the history of the classical guitar from ancient Near East until today.

More pictorial guitar history, in the GuitarSite Museum:
www.GuitarSite.com/history1.htm

Classical Guitar Newsgroup
rec.music.classical.guitar

Richard Yates' Classical Guitar Transcriptions
www.teleport.com/~yateslau/
includes Fugue by Mikhail Glinka. This is a three part fugue that fits on the guitar with almost no modifications. A good piece for learning to project counterpoint clearly. Also: Prelude by Alexander Scriabin. This is a rare example of Scriabin's revolutionary approach to harmony expressed in a compact form. MIDI sound files also available.

Don't forget Yahoo CG listings:
dir.yahoo.com/Entertainment/Music/Instruments/Stringed_Instruments/Guitar/Classical

More on Classical Guitar:
www.GuitarSite.com/classical.htm