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 That a user may use a single mouse click to produce that message that he likes the page instead of typing the same message with several individual key strokes is of no constitutional significance." In 2014, Social@Ogilvy, a division of the advertising agency Ogilvy & Mather, published a widely cited white paper titled "Facebook Zero: Considering Life After the Demise of Organic Reach", documenting Facebook's restriction of content published from businesses' and brands' Pages. The zero refers to the projected percentage of any given Page's followers, or "Likers", who are able to see posts from that Page in their personal