The IRC channel #kerberos on irc.freenode.net is a community resource for general Kerberos discussion and support.
The main IRC channel for MIT Kerberos development is #krbdev on freenode.
For more information about freenode, see https://freenode.net/.
The wiki at https://k5wiki.kerberos.org/ contains useful information for developers working on the MIT Kerberos source code. Some of the information on the wiki may be useful for advanced users or system administrators.