A hint to manage the email notifications of Google Groups;
On the left side under "My Membership Settings" scroll down to "Subscription".
Here you can select if you like to get an email for each full new entry ('each email'), a short version of the new entry ('abridged'), only once a day an overview of all new entries ('digest'), or, if you simply only want to browse and not get emails select the 'no email' option.
Thanks for joining so far, it will take time before it really will take off, we need more members, but, the start is here !