I maintain three lists although if somebody gives me a good suggestion I will consider others.
Link
This list is an open discussion forum concerned with network policy in Australian and was started in 1993. It is very kindly maintained by the Australian National University using mailman software.
Unlink
There is a companion list to link, unlink, which is a "spillover" list for discussion which drift off topic or goes on to long. It is run on this host using macjordomo software.
Ozlib Announce
Ozlib is more a newsletter than a list. It lists news items of interest to Australian librarians which have an Australian focus. It is maintaned with Macjordomo software and compiled using MacJournal.