Facebook announced major changes to its service, including a striking feature called Timeline, which lets you "scrapbook" you digital life. The company also introduced deep, realtime integration with music and video apps such as Hulu, MOG, Rdio, and Netflix which let your friends see all of your content-consumption as it happens. Additionally, it's now possible for developers to come up with their own action words which can live next to the company's famous "Like" button, such as "Read," "Watch," or "Listen."