The CHICKEN Users mailing list is a medium-volume but fast-response list for discussing all things related to CHICKEN. You can send a message to the list by addressing it to firstname.lastname@example.org.
If you are interested in the development of CHICKEN, check out CHICKEN Hackers.
There's also a mailinglist for those that are willing to do the (sometimes boring) maintenance tasks that are necessary to keep a project like CHICKEN (and its eggs) running smoothly; the people doing these chores are called the "CHICKEN janitors". Hence the name of the CHICKEN Janitors mailinglist. All bug reports and comments on the bugtracker are automatically CC'ed to this list.
chicken-announce receives announcements of new releases and noteworthy events in the CHICKEN community.
There's a CHICKEN IRC channel hosted by irc.freenode.net. Join #chicken.
CHICKEN can also be found on Twitter.