There are three mailing lists:
CAA - A general-purpose list for discussing all things related to Life Extension (a digest option is also available for approximately daily batching of emails) which is open to all people.
CAAM - A Members-only list for people who are already signed up with Alcor or the Cryonics Institute in the US; Southern Cryonics in Australia; KrioRus in Russia or Yinfeng in China (this includes Associate Members who are in the process of signing up or will be at some stage).
CAAA - An announcement-only list.
Send a note to me:
phr AT cryonics DOT org DOT au
if you would like to be added to a list or change the list you are on.