Arnold Schoenberg Photo Gallery, including an autograph manuscript of the Verklaerte Nacht (Sextet)
http://www.karadar.com/PhotoGallery/schonberg.html

Arnold Schoenberg Photo Gallery, including a self-portrait
http://w3.rz-berlin.mpg.de/cmp/schonberg_pic.html

Schoenberg photo album, including family photos
http://www.schoenberg.at/1_as/album/fotoalbum.htm

Schoenberg, A Survivor from Warsaw autograph manuscript
http://www.jewishvirtuallibrary.org/jsource/loc/Schoenberg.html

Twelve Tone Music technique and matrix
http://www.pcpros.net/~ntxawgl/music/12_tones_technique.htm