Twin directories of wm:

[DIR]  ftp://ftp.dit.upm.es/linux/mirrors/ftp.gnome.org/teams/docs/devel/guides/wm/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/packages/i386/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/os2/system/x11/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/QNX/i386/6.4.0_head_20081005/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/5.0_2009Q1/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/SunOS/i386/5.11_head/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/5.0_2008Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.99.x/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2009Q1/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2008Q2/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/5.0-current/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2008Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2008Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2008Q1/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/2.1_2007Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/4.0_2007Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/x86_64/2.1_2007Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/powerpc/4.0_2008Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/powerpc/4.0_2008Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/vax/1.6.1_head/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/vax/1.6.2_head/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/powerpc/4.0_2007Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/powerpc/4.0_2008Q2/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/powerpc/4.0_2007Q2/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/4.0_2008Q2/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/4.0_2008Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/5.0_2008Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/4.0_2008Q1/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/2.1_2007Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/4.0_2007Q4/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/i386/2.1_2007Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/arm/4.0_2007Q3/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/arm/4.0_2008Q1/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/snj/pkgstat/20050112.1442/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/uwe/sh3el/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-packages/NetBSD/arm/4.0_2007Q2/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/rhaen/reports/20071231.0851/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040131/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040711.1811/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040716.0710/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/dmcmahill/pkgstat/2004-04-25-alpha/wm/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040121/wm/
[DIR]  ftp://ftp.cs.nthu.edu.tw/pub/X/wm/
[DIR]  ftp://ftp.wh8.tu-dresden.de/pub/netbsd/packages/3.0/i386/wm/
[DIR]  ftp://ftp.andr.ru/pub/os/inferno/4/trunk/mnt/wm/
[DIR]  ftp://ftp.andr.ru/pub/os/inferno/4/trunk/appl/wm/
[DIR]  ftp://ftp.andr.ru/pub/os/inferno/4/trunk/dis/wm/
[DIR]  ftp://ftp.andr.ru/pub/os/inferno/4/tags/20080603/mnt/wm/
[DIR]  ftp://ftp.andr.ru/pub/os/inferno/4/tags/20080603/dis/wm/