Astaro Security Linux: http://www.astaro.com/
BrutalWare: http://hysteria.sk/brutalware/
DLX Linux: http://www.wu-wien.ac.at/usr/h93/h9301726/dlx.html
DOS Linux: http://www.tux.org/pub/people/kent-robotti/index.html
Floppyfw: http://www.zelow.no/floppyfw/
hal91: http://jspiro.tripod.com/linux/hal91.htm
HVLinux: http://hvlinux.tsx.org/
LEM: http://www.linux-embedded.org/
Linux in a Pillbox: http://www.liap.eu.org/
LRP: http://www.linuxrouter.org/
MuLinux: http://sunsite.auc.dk/mulinux/
ThinLinux: http://www.fireplug.net/thinlinux.htm
TinyLinux: http://tiny.seul.org/
tomsrtbt: http://www.toms.net/rb/
Trinux: http://trinux.sourceforge.net/
White Dwarf Linux: http://www.emjembedded.com/linux/dimmpc.html
Xdenu: http://xdenu.tml.hut.fi/
ZipHam: http://perso.libertysurf.fr/f5nlg/