Mailing list for autodir http://lists.sourceforge.net/mailman/listinfo/intraperson-autodir.
Official website is at http://www.intraperson.com/autodir/.
Autofs mailing list http://linux.kernel.org/mailman/listinfo/autofs.
The Automount HOWTO can be found at http://www.tldp.org
Autofs Hacking http://www.goop.org/~jeremy/autofs.