This article is from the Amiga FAQ, by Ignaz Kellerer with numerous contributions by others.
A mailing list is a server that allows to discuss special things via Email. The server holds a list of people that are interested in the respective topic. For example, the gcc mailing list will discuss bugs, new features and other problems of gcc. (see Compilers) If a mail is sent to the server from someone he will forward this mail to all the other people on the list.
You will be added to the list by sending a mail to the server which will usually contain the word `Subscribe' or something similar. Once you are no more interested in the mailing list you can unsubscribe.
Unforunately the servers have a different syntax of subscribing and unsubscribing. The best way to find how to subscribe is to send a mail with the word `Help' to the server. He will reply a mail which should explain how to handle this special server.
Some mailing lists are: Topic Server
Amok email@example.com Dice firstname.lastname@example.org or email@example.com (Germany) gcc firstname.lastname@example.org Lisp email@example.com Mui firstname.lastname@example.org Oberon-A email@example.com