Facebook was created with the mission to make the world more open and connected by allowing people to stay in touch and share what's up with their lives. It has nearly a billion active users and accounts for a significant portion of worldwide mobile ad revenue and traffic to online retailers. There are many types of ads on Facebook, including page post, video, and event ads, as well as sponsored stories. Advertisers can target specific interests and locations and choose from over a dozen different ad formats. Key tips for success include using offers and events, linking to a specific landing page, using sponsored stories, adding clear calls to action, and running ads during peak hours.