The officer who presides over an assembly or discussion to preserve order, propose questions, regulate the proceedings, and declare the votes.
1. In Internet mailing lists and newsgroups, it is possible to set up the mailing list or newsgroup so that all messages have to be sent to the moderator for approval before they are circulated to the group. This helps to keep messages on topic, reduce spam, and reduce flames. Especially in newsgroups, moderated newsgroups tend to have a much higher proportion of useful content than unmoderated newsgroups. 2. In FidoNet Technology Networks, the person who began an echo, established the topic, and sets the rules. In Internet mailing lists, the equivalent term is list owner.