Yahoo! - Entertainment:Music:Artists:Composers
A list of composer sites.

Yahoo! - Entertainment:Music:Computer Generated:MIDI:File Archives:Originals
A list of composer sites.

Open Directory Arts - Composition:Contemporary Classical Composers
A list of composer sites.

MP3.com - Classical
Original music in MP3 format.

The Classical MIDI Connection
A wide variety of classical music. For music by living composers, see the Contemporary section.

MIDI City - Dedicated to Original MIDI Music
Hosts some composers and contains many links to composer sites.

WWW Virtual Library:Classical Music:Composers
A list of composer sites categorized by period.

Kalvos and Damian's New Music Bazaar
A large site of information on new music composers.