Facebook like button years of questions from the public about whether it had an intention to incorporate a "Dislike" button, Facebook officially rolled out "Reactions" to users worldwide on February 24, 2016, letting users long-press on the like button for an option to use one of five pre-defined emotions, including "Love", "Haha", "Wow", "Sad", or "Angry". Reactions were also extended to comments in May 2017. The like button is one of Facebook's social plug-ins, in which the button can be placed on third-party websites. Its use centers around a form of an advertising network, in which it gathers information about which users visit
Facebook artificial intelligence, increased connectivity around the world and virtual and augmented reality. In June 2016 Facebook announced Deep Text, a natural language processing AI which will learn user intent and context in 20 languages. In July 2016, a lawsuit was filed against the company alleging that it permitted the Hamas group to use it to perform assaults that ended the lives of four people. Facebook released the blueprints of Surround 360 camera on GitHub under open-source license. In September 2016, it won an Emmy for its Visual animated short "Henry". In October 2016, Facebook announced a fee-based communications tool called