A like button, like option, or recommend button is a feature in communication software such as social networking services, Internet forums, news websites and blogs where the user can express that they like, enjoy or support certain content. Internet services that feature like buttons usually display the number of users who liked each content, and may show a full or partial list of them. This is a quantitative alternative to other methods of expressing reaction to content, like writing a reply text. Some websites also include a dislike button, so the user can either vote in favour, against or neutrally. Other websites include more complex Web content voting systems, for example five stars.
Various social buttons allow users to express their recommendation or support for websites across web communication platforms.
The Facebook like button is designed as a hand giving "thumbs up". It was originally discussed to have been a star or a plus sign, and during development the feature was referred to not as "like" but as "awesome."
Use on FriendFeed
The like button was first announced as a FriendFeed feature on on October 30, 2007 and was popularized within its community. Later on the feature was integrated to Facebook before eventually FriendFeed was acquired by Facebook August 10, 2009.
YouTube has a Like button that adds items to the list of users' "liked" videos.
Strava the popular GPS tracking app for cycling and running has the Kudos button which gives the option for users to like the activities of fellow athletes.
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