Facebook June 2010. After extensive testing and 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. Facebook Messenger is an instant messaging service and software application. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, and subsequently released standalone iOS and Android
Facebook like button button enabled, the user's web browser connects to Facebook's servers, which record which website was visited, and by what user. A week after the release of the social plugins, Facebook announced that 50,000 websites had installed the features, including the like button. Five months later, the number had increased to 2 million websites. In December 2010 and in the United States, Microsoft's Bing search engine partnered with Facebook to identify which links in search results have been "liked" by the searcher's Facebook friends. Google's social networking service Google+ utilizes a similar concept, the "+1" button. The number of "likes" on