ftp://ftp.euro.net/pub/mirrors/tucows/linux/files/x11/  direct

[DIR]xwin/  direct  375+ twin directories
[DIR]system/  direct  6570+ twin directories
[DIR]scientific/  direct  543+ twin directories
[DIR]office/  direct  1144+ twin directories
[DIR]network/  direct  16338+ twin directories
[DIR]media/  direct  11861+ twin directories
[DIR]graphics/  direct  28007+ twin directories
[DIR]file/  direct  11253+ twin directories
[DIR]entertain/  direct  54 twin directories
[DIR]dock/  direct  976+ twin directories
[DIR]dev/  direct  29757+ twin directories
[DIR]com/  direct  6733+ twin directories
[DIR]adm/  direct  2701+ twin directories