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 like button Facebook can serve as a measurement of interest and/or popularity in a particular brand, product or personality, though there have also been reports of the "overblown importance" of likes. Due to social media's role as an influential way of shaping reputations, there exists companies specializing in selling "likes" from fake accounts. This has caused issues for companies advertising on Facebook, due to receiving an abundance of likes without credibility that distort actual user metrics. Facebook's Terms of Service agreement states that users are only allowed to have one personal page, and it has an ongoing "war" against fake accounts. A