BusyBox site: http://www.busybox.net/
Chroot Jail project: http://www.jmcresearch.com/projects/jail/
Familiar Linux distribution: http://familiar.handhelds.org/
Filesystem Hierarchy Standard: http://www.pathname.com/fhs/
GAR ports system: http://www.lnx-bbc.org/garchitecture.html
QEMU: http://fabrice.bellard.free.fr/qemu/
Autobook: http://sources.redhat.com/autobook/
GNU Autoconf: http://www.gnu.org/directory/autoconf.html
GNU Automake: http://www.gnu.org/directory/automake.html
Handhelds.org Wiki: http://www.handhelds.org/z/wiki/
Linux From Scratch: http://www.linuxfromscratch.org/
Emdebian: http://www.emdebian.org/
Crosstool: http://kegel.com/crosstool/
Crossgcc mailing list: http://sources.redhat.com/ml/crossgcc/