The parts of CPAN that really make it tick... things that are central mirrors, etc - PAUSE - first-tier mirrors use this: http://search.cpan.org/dist/File-Rsync-Mirror-Recent/HOWTO.mirrorcpan - most recently-uploaded modules http://www.cpan.org/modules/01modules.mtime.html - BackPAN - really just another PAUSE mirror, mirrored via rsync, but without the --delete option - read more here: http://paperlined.org/dev/perl/cpan/backpan/backpan.html