Listservs are email-based discussion or announcment services.
Any mail sent to the listserv is forwarded out to all the subscribers.
Discussion lists have an inherent advantage over Usenet in that they usually require that the sender be a subscriber to the listserv. The following are some of the listservs on sustainable building topics that may interest you. If you know of any other listservs that we should include here, let us know . The Greenbuilding listserv is one of the best we've found. Populated by a good number of green building professionals, discussions on this list run a broad range of topics.