There is currently only one AHA! e-mail list, called "aha", which is used for general discussion. The mailing list is open to anyone who lives in Austin, Texas or is willing to travel to Austin to attend the meetings. Subscription requests are moderated — if we don't know who you are, you will be asked to give a quick introduction and verify that you plan on attending the meetings.
To subscribe or unsubscribe, visit the mailman interface.