Google Groups provides a platform for people who want to discuss topics in online groups dedicated to specific themes and subjects. You can access, read and post to Google Groups through your Web browser or via your email account. The Web browser interface doesn't allow users to automatically add signatures to Google Groups messages. To make a signature for Google Groups, you'll need to access the service with your email account and configure the email account to add a signature block to outgoing messages.
Configure Google Groups
Launch your Web browser and go to the Google Groups home page (see Resources). Find the Google group that you want to join by browsing through the subject headings or by entering relevant keywords into the "Search for a Group" input box.
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Double-click the Google Group that you want to join to open the group's home page. Click the "Subscribe to This Group" link toward the top of the home page. If prompted, enter your Google Account username and password. If you don't have a Google Account, click the "Sign Up" link to sign up.
Select your email address from the pull-down list on the group's homepage. Google displays all email addresses associated with your main Google Account. Configure how you want to be emailed by clicking the relevant radio button. You can choose to receive an email for each message, a daily summary email or a digest of all group messages.
Type the nickname that you want to use for the messages you send to the group into the applicable input box. Click the "Join This Group" button.
Configure Your Email Account
Launch the email program or go to the Web-based email service that you'll use to receive and send messages to the Google Group to set up your signature.
Launch Windows Live Mail, and then click "File," "Options," "Mail," "Signatures" and "New." Enter the information that you want to include in the email signature, such as your name and contact details, into the "Text" input box. Click "Set as Default" followed by "Apply" and "OK" to append all email messages, including those sent to Google Groups, to all emails.
Launch Microsoft Outlook. Click "Mail" in the menu on the left. In the main menu ribbon, click "Message," "Include," "Signature," "Signatures," "New" and "Email Signature." Type the signature information into the "Edit Signature" box, then click "OK."
Go to Mail.google.com in your Web browser. Click the gear icon in the main navigation menu. Select "Mail Settings" from the pull-down list. Scroll to the "Signatures" setting under the "General" tab. Click the radio button to enable signatures, then type the signature information into the text input box. Click the "Save Changes" button at the bottom of the screen.