Online Subscription Management for Google Groups

[Dan Knight, LowEndMac.com]

Go to <http://groups.google.com/> and select "Sign in". Enter your
subscribed email address and password. You may also want to check
"Stay signed in".

Google Groups will display a list of al groups that this email address
is subscribed to. Click on "Manage my memberships" - this is where you
can change your nickname, your subscribed email address, and your
subscription type (how you receive messages from the group).