If you prefer mailing list then I'd recommend the perl6-users mailing list. Send an empty e-mail to firstname.lastname@example.org and follow the instructions. Also check out the archive of the Perl 6 users mailing list
The Rakudo Star distribution that we are going to use also includes a draft version of the Using Perl 6 book in the docs/ folder. Check it out.
The Perl 6 Tricks and Treats newsletter has been around for a while.
If you are interested to get special notification when there is new content
on this site, it is the best way to keep track:
This is a newsletter temporarily running on my personal site (szabgab.com) using Mailman,
till I implement an alternative system in Perl 6.
Written by Gabor Szabo