After registration, the Gravatar associated with the email address may be displayed on the web site. Our Privacy Policy governs how we collect and use your data.</p> <p>Also, you are solely responsible for the correct usage and safe storage of the login credentials (username and password). The web site provides links for retrieval of the login credentials if the need arises.</p> <p>If you are under 16 years old, you can only register on the web site or use the service and content of the web site with approval from a parent, guardian or teacher.</p> <p>