ftp://ftp.lf.net/pub/X11/  direct

[DIR]window-manager/  direct  4 twin directories
[DIR]widgets/  direct  8141+ twin directories
[DIR]video/  direct  12318+ twin directories
[DIR]user-interface/  direct  31 twin directories
[DIR]tools/  direct  48080+ twin directories
[DIR]tktcl/  direct  69 twin directories
[DIR]tex/  direct  16747+ twin directories
[DIR]sun/  direct  6132+ twin directories
[DIR]simulation/  direct  258+ twin directories
[DIR]open-look/  direct  67 twin directories
[DIR]news+mail/  direct
[DIR]new/  direct  3919+ twin directories
[DIR]motif/  direct  1070+ twin directories
[DIR]misc/  direct  65535+ twin directories
[DIR]infosys/  direct  30 twin directories
[DIR]graphic/  direct  685+ twin directories
[DIR]games/  direct  62339+ twin directories
[DIR]editor/  direct  8350+ twin directories
[DIR]demo/  direct  19118+ twin directories
[DIR]comm/  direct  4775+ twin directories
[DIR]bitmaps/  direct  10454+ twin directories
[DIR]audio+cd/  direct
[DIR]XFree86/  direct  646+ twin directories
[DIR]R6.4/  direct  16 twin directories
[DIR]R6.1/  direct  44 twin directories
[DIR]ARCHIVE/  direct  88 twin directories