I've done a web page with information and links to Perl 5 modules that may be of interest to those discussing and implementing the Perl 6 language. Some of them are proof-of-concepts of Perl 6 features that the respective authors have implemented to show how things might work in Perl 6.
It's at http://www.codewerk.com/perl6/.
Additions and suggestion for the page are welcome, please send them to marcel@codewerk.com.