Debian has a large and diverse community of users and developers. Below are listed items of interest to those already active in the Debian community and to those who are eager to join in.
Libre Resources - forums, websites, howtos.
Useful irc channels
Jabber chat rooms
Local Groups - Libre communities in your city
Friends of Libre
Bug Squashing Parties
Debian's birthday is August 16.
DebConf - The annual Debian Conference.
Sprints - Work meetings
Linux in general
LinuxWorld Conference and Expo