The Arlington List is an e-mail discussion list. It is not in any way officially run by the town, but rather is a completely private operation.
The List is open to the public - anyone may subscribe - but participants are subject to the rules of the list and the enforcement thereof by the moderator.
It's a very active community and the list gets something like 100 posts per day, though the number of active posters is a very small proportion of the very large number of subscribers.
One may subscribe, unsubscribe or manage one's subscription to the Arlington List via the list's website at:
http://arlingtonlist.org/
Answers to questions about the list may be found at:
http://www.arlingtonlist.org/faq/
Or one may also subscribe (or unsubscribe) by sending e-mail to the following address:
subscribe: mailto:arlington-request@arlingtonlist.org?subject=subscribe
unsubscribe: mailto:arlington-request@arlingtonlist.org?subject=unsubscribe
Subscribers may search the list archives, but they are not made public to non-subscribers.