I have just added a newsletter feature to this site. There are currently two newsletters that you can subscribe to:
The AppleVis Newsletter is an occasional newsletter featuring news, announcements and updates from the AppleVis website.
The App Testers Newsletter is for people who are interested in beta testing apps. This newsletter will let you know when a developer is looking for people to test and report on the accessibility of an app.
I anticipate that both of these newsletters will be fairly infrequent.
You can subscribe to these newsletters via either the newsletter page or your user account page.