Twin directories of tac:

[DIR]  ftp://ftp.dot.state.tx.us/pub/txdot-info/vtr/tac/
[DIR]  ftp://ftp.ifi.uio.no/.snapshot/nightly.1/pub/psai/tac/
[DIR]  ftp://ftp.agilent.com/Users/ADC/DDR/DDR2/tac/
[DIR]  ftp://128.237.157.9/scene.org/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://128.237.157.9/pub/scene.org/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://ftp.ifi.uio.no/pub/psai/tac/
[DIR]  ftp://ftp.astro.caltech.edu/users/tac/
[DIR]  ftp://ftp.magma.ad.jp/pub/forest/t/tac/
[DIR]  ftp://128.237.157.10/scene.org/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://128.237.157.10/pub/scene.org/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://ftp.scene.org/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://ftp.de.scene.org/pub/mirrors/artpacks/www/mirrors/ftp_mimic_ca/christ_ascii_archives/ascii/tac/
[DIR]  ftp://ftp.acer-euro.com/gpl/Utility/nice/coreutils-5.0.tar/coreutils-5.0/coreutils-5.0/tests/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/xml/organisms/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.6.1/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.6/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.4/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.5/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.3_old/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.2/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/release/archive/kgml/KGML_v0.3/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/pathway/organisms/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/genes/organisms/tac/
[DIR]  ftp://ftp.genome.ad.jp/pub/kegg/brite/organisms/tac/
[DIR]  ftp://ftp.forest.impress.co.jp/pub/win/t/tac/
[DIR]  ftp://ftp.mimic.ca/pub/ascii/tac/
[DIR]  ftp://ftp.ifarchive.org/if-archive/games/competition99/inform/tac/
pkg://picon-users_2001.05.16.orig.tar.gz:4226419/usr/lib/picon/users/dk/auc/iesd/  downloads[DIR]3  picon-users_2001.05.16.orig.tar.gz/usr/lib/picon/users/dk/auc/iesd/tac/
pkg://picon-users_2001.05.16.orig.tar.gz:4226419/usr/lib/picon/users/com/att/research/  downloads[DIR]3  picon-users_2001.05.16.orig.tar.gz/usr/lib/picon/users/com/att/research/tac/
pkg://picon-users_2004.07.12-1_all.deb:4368978/picon-users-2001.05.16.orig/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2004.07.12-1_all.deb/picon-users-2001.05.16.orig/dk/auc/iesd/tac/
pkg://picon-users_2004.07.12-1_all.deb:4368978/picon-users-2001.05.16.orig/com/att/research/  info  downloads[DIR]3  picon-users_2004.07.12-1_all.deb/picon-users-2001.05.16.orig/com/att/research/tac/
pkg://picon-users_2004.07.12.orig.tar.gz:4547826/usr/share/picons/users/dk/auc/iesd/  downloads[DIR]3  picon-users_2004.07.12.orig.tar.gz/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2004.07.12.orig.tar.gz:4547826/usr/share/picons/users/com/att/research/  downloads[DIR]3  picon-users_2004.07.12.orig.tar.gz/usr/share/picons/users/com/att/research/tac/
pkg://picon-users_2006.11.02-1_all.deb:4686034/picon-users-2004.07.12.orig/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2006.11.02-1_all.deb/picon-users-2004.07.12.orig/dk/auc/iesd/tac/
pkg://picon-users_2006.11.02-1_all.deb:4686034/picon-users-2004.07.12.orig/com/att/research/  info  downloads[DIR]3  picon-users_2006.11.02-1_all.deb/picon-users-2004.07.12.orig/com/att/research/tac/
pkg://picon-users_2006.11.02-1_all.deb:4686162/usr/share/picons/users/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2006.11.02-1_all.deb/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2006.11.02-1_all.deb:4686162/usr/share/picons/users/com/att/research/  info  downloads[DIR]3  picon-users_2006.11.02-1_all.deb/usr/share/picons/users/com/att/research/tac/
pkg://picon-users_2006.11.02.orig.tar.gz:4690441/usr/share/picons/users/dk/auc/iesd/  downloads[DIR]3  picon-users_2006.11.02.orig.tar.gz/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2006.11.02.orig.tar.gz:4690441/usr/share/picons/users/com/att/research/  downloads[DIR]3  picon-users_2006.11.02.orig.tar.gz/usr/share/picons/users/com/att/research/tac/
pkg://picon-users_2008.01.02-1_all.deb:4719806/picon-users-2006.11.02.orig/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2008.01.02-1_all.deb/picon-users-2006.11.02.orig/dk/auc/iesd/tac/
pkg://picon-users_2008.01.02-1_all.deb:4719806/picon-users-2006.11.02.orig/com/att/research/  info  downloads[DIR]3  picon-users_2008.01.02-1_all.deb/picon-users-2006.11.02.orig/com/att/research/tac/
pkg://picon-users_2008.01.02-1_all.deb:4720028/usr/share/picons/users/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2008.01.02-1_all.deb/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2008.01.02-1_all.deb:4720028/usr/share/picons/users/com/att/research/  info  downloads[DIR]3  picon-users_2008.01.02-1_all.deb/usr/share/picons/users/com/att/research/tac/
pkg://picon-users_2008.01.02.orig.tar.gz:4724017/usr/share/picons/users/dk/auc/iesd/  downloads[DIR]3  picon-users_2008.01.02.orig.tar.gz/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2008.01.02.orig.tar.gz:4724017/usr/share/picons/users/com/att/research/  downloads[DIR]3  picon-users_2008.01.02.orig.tar.gz/usr/share/picons/users/com/att/research/tac/
pkg://picon-users_2008.08.15-1_all.deb:4731284/picon-users-2008.01.02.orig/dk/auc/iesd/  info  downloads[DIR]3  picon-users_2008.08.15-1_all.deb/picon-users-2008.01.02.orig/dk/auc/iesd/tac/
pkg://picon-users_2008.08.15-1_all.deb:4731284/picon-users-2008.01.02.orig/com/att/research/  info  downloads[DIR]3  picon-users_2008.08.15-1_all.deb/picon-users-2008.01.02.orig/com/att/research/tac/
pkg://picon-users_2008.08.15.orig.tar.gz:4733143/usr/share/picons/users/dk/auc/iesd/  downloads[DIR]3  picon-users_2008.08.15.orig.tar.gz/usr/share/picons/users/dk/auc/iesd/tac/
pkg://picon-users_2008.08.15.orig.tar.gz:4733143/usr/share/picons/users/com/att/research/  downloads[DIR]3  picon-users_2008.08.15.orig.tar.gz/usr/share/picons/users/com/att/research/tac/
pkg://picon-weather_2001.01.02-2_all.deb:77344/picon-users-2008.08.15.orig/dk/auc/iesd/  info  downloads[DIR]3  picon-weather_2001.01.02-2_all.deb/picon-users-2008.08.15.orig/dk/auc/iesd/tac/