To log out of your membership, click Sign Out under the gear icon at the top right corner of any Classmates.com page. Select whether or not you'd like the computer to remember your password, then click the Sign Out button.
If you're using a public computer, we recommend that you increase your security by selecting Do not remember my password. Choosing this option will require you to log in manually the next time you visit. Otherwise, select the option labeled Remember my password, and you'll automatically log in the next time you visit the site from the same computer.
Note: Saving (or not saving) login info is also affected by your browser's security settings. Check your browser's Help section for more details if needed.