When you register on this site, your email address is used to identify you as a user entitled to create new pages. Your email is used only to identify you as the person authorised to edit the page(s) you create, and to email a new password to you when you forget your password. We do not give your email address, or any other information about you, to anyone else.
When (and only when) you login, one cookie is stored on your computer to record the fact that you are logged in. It is deleted when you logout.