Email lists are rebroadcasters to which you subscribe and to which you can send mail so that many other subscribers will read it. Usually they pertain to a specific subject, but can also be dedicated to a group or purpose other than this. Discussion groups are regularly meeting live-time gatherings in such servers as IRC (internet relay channels) and private communities such as at AOL (chatrooms). They are also community bulletin boards such as communication networks on private servers.
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