Gmail Invitees - join
A group dedicated to having those basking in the sunshine of their new Gmail Accounts...let their light shine by providing us underprivileged with a free invite.
Low activity, 141 members

Gmail Agent API - join
Open discussions about the Gmail Agent API, and its related applications. Post your feedback and feature requests here!
Low activity, 519 members

GMusers- GMail Beta & Beyond - join
A core group of GMail users who expect to be using GMail through beta and beyond. The list is moderated. There are multiple moderators in order to preserve diversity of opinion and a smooth flow of posts. GMusers is open and globally inclusive. You do not need a GMail account to join.
Low activity, 3195 members, moderated