What is a mailing list?
A mailing list program allows you to send out messages to everyone on the list of e-mail addresses. You send one copy of the newsletter (with a password) to the mailing list, and it takes care of distributing copies to each address on the list. Another form is a discussion list, which allows members to send messages to each other. When a member sends an e-mail message to the mailing list program, it echoes that message with in a few minutes to every member on the list. When lists get large, usually a moderator selected by the list owner screens messages before they are sent out, to cut down on clutter and keep the quality of content high.
Typical features
All the lists we looked at included good tools to manage three types of mailing lists: (1) newsletter or announcement, (2) open discussion lists, and (3) moderated discussions. The latter allows a moderator to screen messages from members before they are sent to the lists
How expensive is free?
1. Brief e-mail ads at the end of messages
2. Banner ads at the Member and List home pages. Since most of these sites offer online archives and messaging and other features, many of the members will be visiting the site online.
3. Opt-in E-mail Lists. Some of these sites, such as Topica.com, anticipate advertising also from future opt-in e-mail lists that compiled from among willing members, though this channel isn't well developed as yet.
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