There are several mailing lists, IRC channels, and wikis available with help for Perl 6 and Rakudo on Parrot. Figuring out the right one to use is often the biggest battle. Here are some rough guidelines:
If you have a question about Perl 6 syntax or the right way to approach a problem using Perl 6, you probably want the email@example.com mailing list. This list is primarily for the people who want to use Perl 6 to write programs, as opposed to those who are implementing or developing the Perl 6 language itself.
The Rakudo and Parrot development teams tend to hang out on IRC a fair bit, either on irc://irc.freenode.net/perl6 or irc://irc.perl.org/parrot.