Twin directories of siod:

[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/lang/siod/
[DIR]  ftp://ftp.kreonet.re.kr/languages/scheme/mit/siod/
[DIR]  ftp://ftp.swiss.ai.mit.edu/pub/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/lang/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040711.1811/lang/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040716.0710/lang/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040121/lang/siod/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040131/lang/siod/
[DIR]  ftp://ftp.mcs.vuw.ac.nz/_mnt/archive/comp/sources/unix/volume28/siod/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.lf.net/pub/unix/ARCHIVE/volume28/siod/
[DIR]  ftp://ftp.sk.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/packages/current-src/pkgsrc/lang/siod/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.freebsd.org/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.dc.aleron.net/pub/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.cse.buffalo.edu/mirror/BSD/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp13.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/ports/lang/siod/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/CVSROOT-ports/lang/siod/
pkg://OGIlexicon-2.0.tar.gz:1602265/speech_tools/  downloads[DIR]3  OGIlexicon-2.0.tar.gz/speech_tools/siod/
[DIR]  ftp://ftp2.tw.freebsd.org/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.nz.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp1.sinica.edu.tw/pub1/scheme/siod/
[DIR]  ftp://ftp.euro.net/pub/mirrors/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.int.ru/.1/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.zenez.com/pub/SCO/skunkware/99/speechtoo/reloc/usr/local/speech_tools/lib/siod/
[DIR]  ftp://ftp.zenez.com/pub/SCO/skunkware/99/speechtoo/reloc/usr/local/speech_tools/siod/
[DIR]  ftp://ftp.kr.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.demon.nl/disk2/freebsd/development/FreeBSD-CVS/ports/lang/siod/
[DIR]  ftp://ftp.informatik.uni-stuttgart.de/pub/archive/comp.sources/unix/siod/
pkg://chtml-0.0.tbz:24096/lib/  downloads[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/
[DIR]3  chtml-0.0.tbz/lib/siod/