Sometimes you might not be asked to sign in, especially when you are already logged into any product of Google like Gmail or Google Chrome. Instead, you are taken straight to your Google Groups account.
This is the email address that members will be using to communicate with one another. A member will send emails to this address and will receive emails from the same address.
On the Join field, you specify people who can join the group. You can choose that people who joins the group have to be invited by group managers or they can send an email requesting to join. Click on the drop-down menu and select the preferred option.
