Google Groups is a simple, reliable service for managing and archiving mailing lists, that offers basic mailing list functionality and the ability to store and search mailing list content on the web. Unlike other free mailing list services, Google Groups offers generous storage limits and displays only relevant text ads (never banners or pop-up ads).

To move your mailing list to Google Groups, create a new group by clicking
"Create a new group" in the menu on the left side of the screen. First, name your group and fill out the other required info. Next, add the email
addresses of the people in your group. Select the option to either
automatically add members or send invitations. Copying and pasting an
existing list of email addresses into this form is one easy way of
populating your group. Once you're ready, click "Done" and notifications or invitations to join your group will be sent out in just moments.