Twin directories of libraries:

[DIR]  ftp://ftp.uni-leipzig.de/pub/linux/pub/comp/os/linux/sunsite/system/Network/libraries/
[DIR]  ftp://ftp.gfz-potsdam.de/pub/home/sf/indridi/forjurgen/texmf/tex/generic/pgf/frontendlayer/tikz/libraries/
[DIR]  ftp://ftp.gfz-potsdam.de/pub/home/sf/indridi/forjurgen/texmf/tex/generic/pgf/libraries/
[DIR]  ftp://ftp.reed.edu/mirrors/faqs/C++-faq/libraries/
[DIR]  ftp://ftp.eutelia.it/pub/Sunsite_Mirror/system/network/libraries/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/tex-archive/graphics/pgf/base/generic/pgf/frontendlayer/tikz/libraries/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/tex-archive/graphics/pgf/base/generic/pgf/libraries/
[DIR]  ftp://ftp.x.org/contrib/libraries/
[DIR]  ftp://ftp.gno.org/pub/apple2/gs.specific/gno/libraries/
[DIR]  ftp://ftp.gno.org/pub/apple2/gs.specific/orca/libraries/
[DIR]  ftp://ftp.beos.hu/pub/beos/obsolete/libraries/
[DIR]  ftp://ftp.efo.ru/pub/atmel/_AVR_MCUs_8bit/_WITH_USB/AT90USBKEY_CD/libraries/
[DIR]  ftp://ftp.efo.ru/pub/atmel/_AVR_MCUs_8bit/_WITH_USB/STK525_CD/libraries/
[DIR]  ftp://ftp.efo.ru/pub/atmel/_C51_and_AVR_with_USB/libraries/
[DIR]  ftp://ftp.kreonet.re.kr/CTAN/graphics/pgf/base/generic/pgf/frontendlayer/tikz/libraries/
[DIR]  ftp://ftp.kreonet.re.kr/CTAN/graphics/pgf/base/generic/pgf/libraries/
[DIR]  ftp://ftp.kreonet.re.kr/gnu/ibiblio/www/savannah-checkouts/non-gnu/onhandpc-kit/libraries/
[DIR]  ftp://ftp.cac.psu.edu/pub/libraries/
[DIR]  ftp://ftp.isi.edu/pub/granacki/ezfab-moved/libraries/
[DIR]  ftp://ftp.tnt.uni-hannover.de/pub/soft/khoros1/manual/vol2/libraries/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/opensuse/repositories/home:/jonaski/libraries/
[DIR]  ftp://83.174.206.8/pub/Books/Tech/comp/PHP + MySQL, AJAX/PHP 5 в подлиннике Д. Котеров/PHP5_examples/PHP5/libraries/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/external/bsd/openldap/dist/libraries/
[DIR]  ftp://ftp.informatik.uni-oldenburg.de/pub/amiga/EGS/libraries/
[DIR]  ftp://ftp.ncsa.uiuc.edu/benchmarks/outgoing/x/milc/cobalt/src/libraries/
[DIR]  ftp://ftp.ncsa.uiuc.edu/benchmarks/outgoing/x/milc/lewis/src/libraries/
[DIR]  ftp://ftp.ncsa.uiuc.edu/benchmarks/outgoing/x/milc/mercury/src/libraries/
[DIR]  ftp://ftp.ncsa.uiuc.edu/benchmarks/outgoing/x/milc/tungsten/src/libraries/
[DIR]  ftp://ftp.ncsa.uiuc.edu/benchmarks/outgoing/x/milc/tungsten2/src/libraries/
[DIR]  ftp://ftp.ednet.ns.ca/pub/educ/libraries/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/latex/dante/graphics/pgf/generic/pgf/libraries/
[DIR]  ftp://ftp.cs.york.ac.uk/pub/pvs/libraries/
[DIR]  ftp://ftp.fas.sfu.ca/pub/math/pub/lachlan/generic/pgf/libraries/
[DIR]  ftp://ftp.fas.sfu.ca/pub/math/pub/lachlan/latex/pgf/libraries/
[DIR]  ftp://ftp.pf.jcu.cz/mnt/fis/fis-usr/lib/tclX/7.5.2/help/tcl/libraries/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/news.answers/C++-faq/libraries/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/comp.answers/C++-faq/libraries/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/comp.lang.c++/C++-faq/libraries/
[DIR]  ftp://ftp.espci.fr/incoming/Adouane/chinois/phpmyadmin/libraries/
[DIR]  ftp://24.215.0.24/CTAN/graphics/pgf/base/generic/pgf/frontendlayer/tikz/libraries/
[DIR]  ftp://24.215.0.24/CTAN/graphics/pgf/base/generic/pgf/libraries/
[DIR]  ftp://ftp.mao.kiev.ua/pub/software/Linux/system/network/libraries/
[DIR]  ftp://ftp.sztaki.hu/pub/tex/graphics/pgf/generic/pgf/libraries/
[DIR]  ftp://ftp.sztaki.hu/pub/tex/graphics/pgf/latex/pgf/libraries/
[DIR]  ftp://ftp.sztaki.hu/pub/tex/graphics/pgf/plain/pgf/libraries/
[DIR]  ftp://ftp.tug.ctan.org/pub/tex-archive/graphics/pgf/base/generic/pgf/frontendlayer/tikz/libraries/
[DIR]  ftp://ftp.tug.ctan.org/pub/tex-archive/graphics/pgf/base/generic/pgf/libraries/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/crypto/libraries/
[DIR]  ftp://ftp.linux.org.uk/pub/linux/arm/people/chris/rpms/full/libraries/
[DIR]  ftp://ftp.linux.org.uk/pub/linux/arm/people/chris/rpms/stable/libraries/