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, 3185 members, moderated

Gmail News - join
A Google approach to email.Welcome to the Group of Gmail Users.and stay in touch with lastest developments in Gmail. Gmail is an experiment in a new kind of webmail, built on the idea that you should never have to delete mail and you should always be able to find the message you want.1000 megabytes of free storage so you'll never need to delete another message.
Low activity, 2992 members

Gmail Help Discussion - join
This discussion group is for new and experienced Gmail users to ask questions, find answers, and share tips. To get the most from this group, please read our guidelines at http://services.google.com/mail/help-charter . Only posts submitted by Gmail Guide are approved by Google.
255397 members