An email distribution group is a list of the email addresses of people who are interested in a certain topic and have subscribed to the group. Any email a subscriber sends to the group gets sent to all the subscribers of the group.
Subscriptions are free.
There are email distribution groups on hundreds of topics. To identify groups on other topics, follow this link . Many of the transportation-related email groups listed below are not yet widely listed on the standard listserv lists. Hertz users should contact the system administrator for instructions. There is a movement to add more groups under the misc.transport.