How does one unsubscribe from Facebook?

With account deactivation via an application to deactivate your account, which is located on the Home page/start page, your profile and all related information will be deleted immediately and become inaccessible to other Facebook users. This means that you effectively disappear from the Facebook service. If you think that you will not use Facebook and you want to delete your account, Facebook will do it for you. When you delete it you will not be able to reactivate or access to content and information that you added. If you want to delete your account, contact Facebook on this form (http://www.facebook.com/help/contact.php?show_form=delete_account) and confirm your request.