Information you provide us directly: When you register for an account with The Guestbook, we ask for your e-mail address and ask that you create a password. Alternatively, you may register using a third-party service for authentication, such as Gmail, Yahoo, Outlook, and Hotmail (see “Information we may receive from third parties” below). Once you are registered, we allow you to provide us with additional information such as your first and last name, address, hotel preferences, birthdate (month and day), phone number and additional e-mail addresses. We may retain any messages you send through the Service, and may collect information you provide in any content you provide to the Service. We use this information to operate, maintain, and provide to you the features and functionality of the Service, as well as to communicate directly with you, such as to send you email messages and push notifications. We may send you emails containing newsletters, promotions and special offers. If you do not want to receive such email messages, you will be given the option to opt out or change your preferences. We also use your information to send you Service-related emails (e.g., account verification, purchase and billing confirmations and reminders, changes/updates to features of the Service, technical and security notices). You may not opt out of Service-related e-mails. If you choose to make a reservation with a Participating Property through The Guestbook's website, you may provide credit card and other information associated with such reservations. The requisite information will be passed through to the Participating Properties to fulfill its reservation requirements, however, credit card information will never be seen nor stored by The Guestbook (see also “Sharing of your Information").

Information we may receive from syncing your e-mail account: If you enable e-mail sync for your e-mail account(s) in order to automate various functions of the Service, The Guestbook will utilize standard secure protocols, such as OAuth, to authorize access. The respective email service will seek permission for the functions requested by The Guestbook, which you will then authorize. Despite the access level granted via this process, The Guestbook commits to limit the sync process to “view” rights and will only access e-mails for the purpose of collecting information about hotel/travel reservations & billing in order to operate, maintain and provide our Service. You may cancel this integration at any time via the respective third-party email service. See Your Choices, below, or visit My Account on our website to learn more.

Information we may receive from third parties: We may receive information about you from third parties. For example, if you access our websites or Service through a third party connection or log-in such as Facebook, by “following,” or “liking,” us on social media, adding The Guestbook application, or linking your social media account to The Guestbook Service, etc., that third party may pass certain information about your use of its service to The Guestbook. This information could include, but is not limited to, the user ID associated with your account (for example, your Facebook UID), an access token necessary to access that service, any information that you have permitted the third party to share with us, and any information you have made public in connection with that service. If you allow us access to your friends list, your friends’ user IDs, and your connection to those friends, may be used and stored to make your experience more social, and to allow you to invite your friends to use our Service as well as provide you with updates if and when your friends join The Guestbook. You should always review, and if necessary, adjust your privacy settings on third-party websites and services before linking or connecting them to The Guestbook Service. You may also unlink your third party account from the Service by adjusting your settings on the third party service.