What they are Newsgroups are public discussions that anyone with newsreader software can subscribe to and participate in. You read what other members have written and can post a reply if you choose. Mailing lists are used for technical support discussions, class work, scholarly conversations and general interests.
Some lists are closed, such as lists which support specific classes.
Other lists are public and anyone can join. Whenever you join a list, please read the info file carefully for a description of the type of discussions are allowed on the list. How to subscribe Usually to subscribe to a list you send message to list owner or manager. The address of the list owner or manager is NOT the same as the address of the list. The message should be sent with nothing in the subject line .