Twin directories of twm:

[DIR]  ftp://ftp.linux.it/ubuntu/pool/universe/t/twm/
[DIR]  ftp://ftp.linux.it/debian/pool/main/t/twm/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-12.1/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-current/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-12.0/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.cesca.es/mirror/debian/pool/main/t/twm/
[DIR]  ftp://ftp.saintjoe.edu/pub/linux/slackware/slackware-current/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors3/debian.org/debian/pool/main/t/twm/
[DIR]  ftp://ftp.uni-magdeburg.de/pub/mirror/linux/slackware/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.uni-magdeburg.de/pub/mirror/linux/debian/pool/main/t/twm/
[DIR]  ftp://debian.lcs.mit.edu/debian/pool/main/t/twm/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ubuntu/pool/universe/t/twm/
[DIR]  ftp://ftp.kfki.hu/pub/linux/debian/pool/main/t/twm/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/x11-wm/twm/
[DIR]  ftp://ftp.cprm.net/.disk0/slackware/slackware-12.1/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.farlep.net/pub/linux/Slackware-12.0/d5/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.scw.net.br/pub/slamd64/slamd64-12.2/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.skynet.be/mirror1/slackware.com/slackware-current/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.skynet.be/mirror1/slackware.com/slackware-12.0/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.skynet.be/mirror1/slackware.com/slackware-12.1/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.skynet.be/mirror1/debian.org/pool/main/t/twm/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/gentoo/portage/x11-wm/twm/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/debian/pool/main/t/twm/
[DIR]  ftp://ftp.fagskolen.gjovik.no/pub/cygwin/release-2/X.Org/twm/
[DIR]  ftp://ftp.fagskolen.gjovik.no/pub/cygwin/release/X.Org/twm/
[DIR]  ftp://ftp.3logic.net/.1/debian/pool/main/t/twm/
[DIR]  ftp://ftp.uic.nnov.ru/pub/Linux/Debian/debian/pool/main/t/twm/
[DIR]  ftp://ftp.uic.nnov.ru/pub/Linux/Debian/debian-amd64/pool/main/t/twm/
[DIR]  ftp://ftp.wustl.edu/pub/linux/distributions/debian/pool/main/t/twm/
[DIR]  ftp://ftp.nz.debian.org/ubuntu/pool/universe/t/twm/
[DIR]  ftp://ftp.nz.debian.org/debian/pool/main/t/twm/
[DIR]  ftp://ftp.kreonet.re.kr/OS/cygwin/release/X.Org/twm/
[DIR]  ftp://ftp.kreonet.re.kr/OS/cygwin/release-2/X.Org/twm/
[DIR]  ftp://ftp.nz.debian.org/gentoo-x86-portage/x11-wm/twm/
[DIR]  ftp://ftp.uni-stuttgart.de/pub/mirror/ftp.de.debian.org/debian/pool/main/t/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/ubuntu/pool/universe/t/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/slackware/source/x/x11/post-install/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/debian-mirror/debian/pool/main/t/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/wm/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/ports/x11-wm/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/x11/bin/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/xsrc/external/mit/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/xsrc/xfree/xc/programs/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/x11/bin/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/external/mit/xorg/bin/twm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-5_BETA/xsrc/xfree/xc/programs/twm/
[DIR]  ftp://ftp.mcs.vuw.ac.nz/_mnt/pub/packages/X/R5/mit/clients/twm/
[DIR]  ftp://ftp.port80.se/ubuntu/pool/universe/t/twm/
[DIR]  ftp://ftp.port80.se/debian/pool/main/t/twm/
[DIR]  ftp://ftp.cs.iastate.edu/pub/linux/debian/pool/main/t/twm/