KnowraViral videoViral videoAn online video that spreads rapidly through sharing and attracts a large audience in a short time.BriefConnectSocial sharing: The circulation of content between people through interpersonal communication and online platforms. Each share can expose a video to a new audience beyond its original publisher's followers.Gangnam Style: A 2012 music video by South Korean musician Psy, known for its dance and global online popularity. Its unprecedented YouTube view count made it an early landmark of video virality.Viral marketing: A marketing strategy that encourages people to spread promotional content through sharing. Brands design videos to gain attention and circulation without relying only on paid placement.Internet celebrity: A person who gains public recognition primarily through internet platforms. A viral video can turn an unknown creator or subject into a widely recognized figure.Viral marketing campaign: A planned promotional effort designed to encourage audiences to distribute marketing content. A video can become viral without a coordinated campaign or any promotional intent.Network effect: A phenomenon in which a service becomes more valuable as more people use it. Growing participation can make a video's sharing network expand faster as it gains attention.Charlie Bit My Finger: A 2007 home video showing a baby biting his brother's finger, uploaded to YouTube. Its ordinary family moment became one of YouTube's most widely viewed early viral videos.Influencer marketing: A marketing practice that uses creators with established audiences to promote products or ideas. Creators can give videos an initial audience and social credibility that encourage further sharing.Attention economy: An economic environment in which organizations compete to capture and retain limited human attention. Viral video is one outcome of platforms and publishers competing for attention at scale.Trending topic: A subject receiving a sudden increase in attention on a platform or in public discussion. A video may drive a trend, but a trend can spread without any single video.Show all 29Linked from 23 pagesSocial contagionBroader topic: Online sharing can amplify content through both social influence and platform distribution.Late-night talk showRelated: Short interview games and comic bits are often edited into widely shared clips.TikTokNarrower topic: TikTok has become a major venue for videos reaching audiences far beyond their creators’ followers.Novelty songCompared with: Online circulation now gives comic songs a route to mass attention beyond radio and record sales.Talent showRelated: A standout audition can gain a much larger audience through online circulation.RickrollingNarrower topic: The music video’s renewed popularity came from its circulation as a prank payoff.America's Got TalentRelated: Auditions and standout performances often circulate far beyond the show's broadcast audience.Wonder GirlsNarrower topic: Online circulation amplified dance recreations and made the group’s hooks widely recognizable.Show all 23