Dogbook is a Facebook application that allows users to create profiles for their pets. It has over 10 million monthly page views and 4.5 million installed users. The application allows pets to have profiles, newsfeeds, photos, videos, friends lists, status updates and more. Various metrics are provided on the user base and engagement for Dogbook and other similar pet-focused applications. Partnerships are discussed between the applications and companies like Purina, including sponsored content and dynamic ads.