In some cases broadcast mailing lists have been used to disseminate information. Message board sites have also been used. I would recommend that a true mailing list such as Majordomo or Listserv to be used. This would allow for immediate transmission of a message to the entire list. It would also allow ready classification of what is meant for private consumption and what is meant for public consumption.
Email lists can be on any number of topics.
In fact there already exist over 71,000 email lists on most imaginable topics. This page has information on how to trouble shoot undeliverable mail. It reviews how to look at your email headers and how to use finger, ping and a variety of other internet services to try to discover why your mail could not be delivered. Next month we will examine email security, how to organize your email, searching for email addresses and a few email tricks.