it was an emailing list newsgroup, all you had to do was reply to one email address and everyone on the list got a copy.
the beauty was all the emails were saved on line so you could go in and look at old ones for reference, you could turn it off so it didnt fill up your mailbox and you could read online, you copuld opt for one digest email a day with them all in , it was also by member only so non public, oh and free
shame really