* [http://wiki.gentoo.org/wiki/Preserve-libs Gentoo preserve-libs]
* [http://swift.siphos.be/aglara/ A Gentoo Linux Advanced Reference Architecture]
* [http://www.gentoo.org/proj/en/gentoo-alt/prefix/ Gentoo Prefix]
* man pages
** [http://dev.gentoo.org/~zmedico/portage/doc/man/portage.5.html portage(5)]