aaigroup is the name of a private area on Yahoo.com that has been set up for AAI members only. The general public doesn't see aaigroup when they search Yahoo.com, and email attachments are not permitted.
This is a convenient free service that allows members to broadcast and to receive items of general interest to everyone who has joined aaigroup. So far, fewer than four messages per week are broadcast on aaigroup.
If you do join, and later decide to leave the group, just send a blank email to email@example.com