ftp://ftp.kddlabs.co.jp/21/  direct

[DIR]FAQ/  direct  1000+ twin directories
[DIR]IPv6/  direct  230+ twin directories
[DIR]Linux/  direct  1000+ twin directories
[DIR]TeX/  direct  600+ twin directories
[DIR]Tools/  direct  1000+ twin directories
[DIR]Japan/  direct  82 twin directories
[DIR]Mobile/  direct  390+ twin directories
[DIR]Sun/  direct  500+ twin directories
[DIR]Unix/  direct  620+ twin directories
[DIR]X11/  direct  1000+ twin directories
[DIR]backup/  direct  750+ twin directories
[DIR]database/  direct  1000+ twin directories
[DIR]doc/  direct  1000+ twin directories
[DIR]geekgadgets/  direct  3 twin directories
[DIR]inet/  direct  950+ twin directories
[DIR]gnusoftware/  direct
[DIR]graphics/  direct  1000+ twin directories
[DIR]infosystems/  direct  32 twin directories
[DIR]lang/  direct  1000+ twin directories
[DIR]lost+found/  direct  1000+ twin directories
[DIR]mail/  direct  1000+ twin directories
[DIR]multimedia/  direct  1000+ twin directories
[DIR]office/  direct  610+ twin directories
[DIR]private/  direct  1000+ twin directories
[DIR]KDDI/  direct
[DIR]PC/  direct  570+ twin directories
[DIR]ctan/  direct  66 twin directories
[DIR]games/  direct  1000+ twin directories
[DIR]sites/  direct  670+ twin directories
[DIR]internet-doc/  direct
[DIR]news/  direct  1000+ twin directories
[DIR]palmtops/  direct  53 twin directories
[DIR]security/  direct  1000+ twin directories
[DIR]xemacs/  direct  850+ twin directories