If you decide to disconnect your Classmates® and Facebook accounts, you can do so by managing your account settings.
For desktop users, click My Classmates® in the top portion of any page. (For mobile users, click , you may have to expand to make your selection). Select Privacy, then look for the Facebook Connect section and click Disconnect.
After making this change, new content will no longer be migrated from your Facebook account. If you'd like to remove or replace any profile content that was populated from Facebook before disconnecting, visit your Classmates profile under My Classmates® in the top portion of any page.