Twin directories of ftp-list:

[DIR]  ftp://ftp.reed.edu/mirrors/faqs/ftp-list/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/news.answers/ftp-list/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/alt.answers/ftp-list/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/usenet/comp.answers/ftp-list/
[DIR]  ftp://ftp.swb.de/pub/docs/news.answers/ftp-list/
[DIR]  ftp://ftp.cs.nott.ac.uk/sites/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/answers/ftp-list/
[DIR]  ftp://ftp.padua.org/pub/doc/news.answers/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/.snapshot/hourly.1/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/.snapshot/nightly.0/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/.snapshot/nightly.1/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/.snapshot/sv_hourly.5/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/.snapshot/sv_weekly.0/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.cs.uu.nl/pub/NEWS.ANSWERS/ftp-list/
[DIR]  ftp://ftp.enst.fr/pub/faqs/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/comp/answers/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/news/answers/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-group/alt.answers/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-group/comp.answers/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-group/news.answers/ftp-list/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/alt/answers/ftp-list/
[DIR]  ftp://ftp.gwdg.de/pub/rtfm/usenet-by-hierarchy/comp/answers/ftp-list/
[DIR]  ftp://ftp.gwdg.de/pub/rtfm/usenet-by-hierarchy/news/answers/ftp-list/
[DIR]  ftp://ftp.gwdg.de/pub/rtfm/usenet-by-hierarchy/alt/answers/ftp-list/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/news/answers/ftp-list/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/answers/ftp-list/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/alt/answers/ftp-list/