1. Select "Options" from the Yahoo! navigation bar.
2. Under Management, select the "Signature" link.
3. Enter your personalized signature in the text field. If you select the "Color & Graphics" link, you can add color, change the text, or add an emoticon.
4. Click "Save" at the bottom of the page to save your changes.
Hotmail
1. Select "Options" from the Hotmail navigation bar.
2. Under "Mail Options," select the "Personal Signature" Link
3. Enter your personalized signature in the text field. Click "OK" to save your changes.