ftp://ftp.kfki.hu/pub/packages/perl/CPAN/modules/by-category/06_Data_Type_Utilities/  direct

[DIR]YAML/  direct  955+ twin directories
[DIR]X500/  direct  760+ twin directories
[DIR]Webalizer/  direct  345+ twin directories
[DIR]WDDX/  direct  601+ twin directories
[DIR]Tree/  direct  1635+ twin directories
[DIR]Time/  direct  2726+ twin directories
[DIR]Tie/  direct  2377+ twin directories
[DIR]Thesaurus/  direct  565+ twin directories
[DIR]Tangram/  direct  438+ twin directories
[DIR]Storable/  direct  760+ twin directories
[DIR]Statistics/  direct  776+ twin directories
[DIR]Sort/  direct  700+ twin directories
[DIR]Set/  direct  822+ twin directories
[DIR]Scalar/  direct  877+ twin directories
[DIR]SWF/  direct  441+ twin directories
[DIR]Roman/  direct  600+ twin directories
[DIR]Ref/  direct  736+ twin directories
[DIR]Readonly/  direct  442+ twin directories
[DIR]Quantum/  direct  457+ twin directories
[DIR]Persistent/  direct  458+ twin directories
[DIR]Persistence/  direct  1009+ twin directories
[DIR]POE/  direct  1590+ twin directories
[DIR]PDL/  direct  734+ twin directories
[DIR]Object/  direct  2320+ twin directories
[DIR]ObjStore/  direct  594+ twin directories
[DIR]Math/  direct  3116+ twin directories
[DIR]MOP/  direct  441+ twin directories
[DIR]List/  direct  1359+ twin directories
[DIR]Lexical/  direct  372+ twin directories
[DIR]Iterator/  direct  838+ twin directories
[DIR]Heap/  direct  596+ twin directories
[DIR]Hash/  direct  1132+ twin directories
[DIR]Grid/  direct  511+ twin directories
[DIR]Graph/  direct  1197+ twin directories
[DIR]Glib/  direct  645+ twin directories
[DIR]Geo/  direct  1601+ twin directories
[DIR]GDS2/  direct  369+ twin directories
[DIR]FreezeThaw/  direct  489+ twin directories
[DIR]Decision/  direct  788+ twin directories
[DIR]DateTimeX/  direct  322+ twin directories
[DIR]DateTime/  direct  2396+ twin directories
[DIR]Date/  direct  2749+ twin directories
[DIR]Data/  direct  8059+ twin directories
[DIR]DFA/  direct  408+ twin directories
[DIR]Compass/  direct  391+ twin directories
[DIR]Clone/  direct  539+ twin directories
[DIR]Class/  direct  5522+ twin directories
[DIR]Calendar/  direct  2739+ twin directories
[DIR]Boulder/  direct  500+ twin directories
[DIR]Boost/  direct  354+ twin directories