<em>Face grouping. </em> </strong>As you add new photos, we automatically associate similar faces (if you have the face grouping feature enabled), places and other image characteristics within your photo collection. If you have the face grouping feature enabled, when you upload photos of yourself, friends, family or others, we create a numerical representation of the faces detected in your photos and automatically group similar faces together. We only use this feature to help you organize, tag and create personalized products from your own photos. We never attempt to determine whether any similar faces appear in photos uploaded by different Shutterfly users or otherwise identify the people in your photos. We do not sell or share this information with third parties.