Viral videos often contain humorous content and include televised comedy sketches, such as The Lonely Islands "Lazy Sunday" and "Dick in a Box", Numa Numa videos, The Evolution of Dance,Chocolate Rain on YouTube; and web-only productions such as I Got a Crush... on Obama. Some eyewitness events have also been caught on video and have "gone viral" such as the Battle at Kruger.
One commentator called the Kony 2012 video the most viral video in history (about 34,000,000 views in three days and 100,000,000 views in six days), but "Gangnam Style" (2012) received one billion views in five months and was the most viewed video on YouTube from 2012 until "Despacito" (2017).
Videos were shared long before YouTube or even the Internet by word-of-mouth, film festivals, VHS tapes, and even to fill time gaps during the early days of cable. Perhaps the earliest was Reefer Madness, a 1936 "educational" film that circulated under several different titles. It was rediscovered by Keith Stroup, founder of NORML, who circulated prints of the film around college film festivals in the 1970s. The company who produced the prints, New Line Cinema, was so successful they began producing their own films. The most controversial was perhaps a clip from a newscast from Portland, Oregon in November 1970. In the clip, the disposal of a beached whale carcass by dynamite is documented, including the horrific aftermath of falling mist and chunks since the exclusion zone wasn't big enough. The exploding whale story obtained urban legend status in the Northwest and gained new interest in 1990 after Dave Barry wrote a hysterical column about the event, leading to copies being distributed over bulletin board systems—a sort of primitive Internet—around 1994.
The "humorous home movie" genre dates back at least to 1963, when the TV series "Your Funny, Funny Films" debuted. The series showcased amusing film clips, mostly shot on 8mm equipment by amateurs. The idea was revived in 1989 with America's Funniest Home Videos, a series described by an ABC executive as a one-time "reality-based filler special" that was inspired by a segment of a Japanese variety show, Fun With Ken and Kaito Chan, borrowing clips from various Japanese home video shows as well. Now the longest-running primetime entertainment show in the history of ABC, the show's format includes showing clips of home videos sent in to the show's committee, and then the clips are voted on by a live filmed audience, with the winners winning a monetary prize.
During the internet's public infancy, the 1996 Seinfeld episode "The Little Kicks" addresses the distribution of a viral video through non-online, non-broadcast means. It concludes with the citizens of New York City having individually witnessed Elaine's terrible dancing via a bootleg copy of a feature film, establishing that the dancing footage had effectively gone viral.
Viral videos began circulating as animated GIFs small enough to be uploaded to websites over dial-up Internet access or through email as attachments in the early 1990s. Videos were also spread on message boards, P2P file sharing sites, and even coverage from mainstream news networks on television. Two of the most successful viral videos of the early internet era were "The Spirit of Christmas" and "Dancing Baby". "The Spirit of Christmas" surfaced in 1995, spread through bootleg copies on VHS and on the internet, as well as an AVI file on the PlayStation game disc for Tiger Woods 99 (which later led to a recall). The popularity of the videos led to the creation of the television series South Park after it was picked up by Comedy Central. "Dancing Baby", a 3D-rendered dancing baby video by the creators of Character Studio for 3D Studio MAX, became something of a late 1990s cultural icon in 1996 in part due to its exposure on worldwide commercials, editorials about Character Studio, and the popular television series Ally McBeal. The video may have first spread when Ron Lussier, the animator who cleaned up the raw animation, began passing the video around his workplace, LucasArts.
Later distribution of viral videos on the internet before YouTube, which was created in 2005 and bought by Google in 2006, were mostly though websites dedicated to hosting humorous content, such as Newgrounds and YTMND, although message boards such as eBaum's World and Something Awful were also instrumental. Notably, some content creators hosted their content on their own websites, such as Joel Veitch's site for his band Rather Good, which hosted quirky Flash videos for the band's songs; the most popular was "We Like the Moon", whose viral popularity on the internet prompted Quiznos to parody the song for a commercial. The most famous self-hosted home of viral videos is perhaps Homestar Runner, launched in 2000 and still running. The introduction of social media such as Facebook and Twitter has created even more avenues for videos to go viral. More recently, there has been a surge in viral videos on video sharing sites such as YouTube, partially because of the availability of affordable digital cameras. Beginning in December 2015, YouTube introduced a "trending" tab to alert users to viral videos using an algorithm based on comments, views, "external references", and even location. The feature reportedly does not use viewing history to serve up related content, and the content may be curated by YouTube.
There are several ways to gauge whether a video has "gone viral". The statistic perhaps most mentioned is number of views, and as sharing has become easier, the threshold requirement of sheer number of views has increased. YouTube personality Kevin Nalty (known as Nalts) recalls on his blog: "A few years ago, a video could be considered 'viral' if it hit a million views", but says as of 2011, only "if it gets more than 5 million views in a 3–7 day period" can it be considered "viral". To compare, 2004's "Numa Numa" received two million hits on Newgrounds in its first three months (a figure explained in a 2015 article as "a staggering number for the time").
Nalts also posits three other considerations: buzz, parody, and longevity, which are more complex ways of judging a viral video's views. Buzz addresses the heart of the issue; the more a video is shared, the more discussion the video creates both online and offline. What he emphasizes is notable is that the more buzz a video gets, the more views it gets. A study on viral videos by Carnegie Mellon University found that the popularity of the uploader affected whether a video would become viral, and having the video shared by a popular source such as a celebrity or a news channel also increases buzz. It is also part of the algorithm YouTube uses to predict popular videos. Parodies, spoofs and spin-offs often indicate a popular video, with long-popular video view counts given with original video view counts as well as additional view counts given for the parodies. Longevity indicates if a video has remained part of the Zeitgeist.
Due to their societal impact and marketability, viral videos attract attention in both advertising and academia, which try to account for the reason viral videos are spread and what will make a video go viral. Several theories exist.
A viral video's longevity often relies on a hook which draws the audience to watch them. The hook is able to become a part of the viral video culture after being shown repeatedly. The hooks, or key signifiers, are not able to be predicted before the videos become viral. The early view pattern of a viral video can be used to forecast its peak day in future. Notable examples include "All your base are belong to us", based on the poorly translated video game Zero Wing, which was first distributed in 2000 as a GIF animation and became popular for the grammatically incorrect hook of its title, and Don Hertzfeldt's 2000 Academy Awards Best Animated Short Film nomination "Rejected" with the quotable hooks "I am a banana" and "My spoon is too big!" Another early video was the Flash animation "The End of the World", created by Jason Windsor and uploaded to Albino Blacksheep in 2003, with quotable hooks such as "but I'm le tired" and "WTF, mates?"
Rosanna Guadagno, a social psychologist at the University of Texas at Dallas, found in a study that people preferred to share a funny video rather than one of a man treating his own spider bite, and overall they were more likely to share any video that evoked an intense emotional response. Two professors at the Wharton School at the University of Pennsylvania also found that uplifting stories were more likely to be shared on the New York Times' web site than disheartening ones.
Others postulate that sharing is driven by ego in order to build up an online persona for oneself. Chartbeat, a company that measures online traffic, compiled data comparing the amount of time spent reading an article and the number of times it was shared and found that people often post articles on Twitter they haven't even read.
One such video, the "Free Hugs Campaign" with accompanying music by the Sick Puppies, was one of the winners of the 2006 YouTube Awards. However, the awards received criticism over the voting process and accused of bias. However, the main character of the video, Juan Mann, received positive recognition after being interviewed on Australian news programs and appearing on The Oprah Winfrey Show.
Viral videos continue to increase in popularity as teaching and instructive aids. In March 2007, an elementary school teacher, Jason Smith, created TeacherTube, a website for sharing educational videos with other teachers. The site now features over 54,000 videos. Some college curricula are now using viral videos in the classroom as well. Northwestern University offers a course called "YouTubing 101". The course invites students to produce their own viral videos, focusing on marketing techniques and advertising strategies.
"United Breaks Guitars", by the Canadian folk rock music group Sons of Maxwell, is an example of how viral videos can be used by consumers to pressure companies to settle complaints. Another example is Brian Finkelstein's video complaint to Comcast, 2006. Finkelstein recorded a video of a Comcast technician sleeping on his couch. The technician had come to repair Brian's modem but had to call Comcast's central office and fell asleep after being placed on hold waiting for Comcast.
The Canadian high school student known as Star Wars Kid was subjected to significant harassment and ostracizing after the viral success of his video (first uploaded to the Internet on the evening of April 14, 2003). His family accepted a financial settlement after suing the individuals responsible for posting the video online.
In July 2010, an 11-year-old girl with the pseudonym "Jessi Slaughter" was subjected to a campaign of harassment and cyberbullying following the viral nature of videos she had uploaded to Stickam and YouTube. As a result of the case, the potential for cyberbullying as a result of viral videos was widely discussed in the media.
The Chicago Tribune reported that in 2015, nearly 1,000 civilians in the United States were shot and killed by police officers— whether the officers behind the trigger are heroes or villains is now often publicly called into question in the age of viral videos. As more people are uploading videos of their encounters with police, more departments are encouraging their officers to wear body cameras. The procedure for releasing such video is currently evolving and could potentially incriminate more suspects than officers, although current waiting times of several months to release such videos appear to be attempted cover-ups of police mistakes. In October 2015, then-FBI Director James Comey remarked in a speech at the University of Chicago Law School that the increased attention on police in light of recent viral videos showing police involved in fatal shootings has made officers less aggressive and emboldened criminals. Comey has acknowledged that there is no data to back up his assertion; according to him, viral videos are one of many possible factors such as cheaper drugs and more criminals being released from prison. Other top officials at the Justice Department have stated that they do not believe increased scrutiny of officers has increased crime.
Two videos went viral in October 2015 of a white school police officer assaulting an African-American student. The videos, apparently taken with cell phones by other students in the classroom, were picked up by local news outlets and then further spread by social media.
Dash cam videos of the Chicago police shooting of Laquan McDonald were released after 14 months of being kept sealed, which went viral and sparked further questions about police actions. Chicago's mayor, Rahm Emanuel, fired Police Superintendent Garry McCarthy and there have also been demands for Emanuel to resign. An eerily similar case, the shooting of Ronald Johnson by Chicago police also caught on a dash cam and also attempted to be kept secret, is currently part of an ongoing federal lawsuit against the city.
The United States presidential election, 2008, showcased the impact of political viral videos. For the first time, YouTube hosted the CNN-YouTube presidential debates, calling on YouTube users to pose questions. In this debate, the opinions of viral video creators and users were taken seriously. There were several memorable viral videos that appeared during the campaign. In June 2007, "I Got a Crush... on Obama", a music video featuring a girl claiming to have a crush on presidential candidate Barack Obama, appeared. Unlike previously popular political videos, it did not feature any celebrities and was purely user-generated. The video garnered many viewers and gained attention in the mainstream media.
YouTube became a powerful source of campaigning for the 2008 Presidential Election. Every major party candidate had their own YouTube channel in order to communicate with the voters, with John McCain posting over 300 videos and Barack Obama posting over 1,800 videos. The music video, "Yes We Can", by will.i.am demonstrates user-generated publicity for the 2008 Presidential Campaign. The video depicts many celebrities as well as black and white clips of Barack Obama. This music video inspired many parodies and won an Emmy for Best New Approaches in Daytime Entertainment.
The proliferation of viral videos in the 2008 campaign highlights the fact that people increasingly turn to the internet to receive their news. In a study for the Pew Research Center in 2008, approximately 2% of the participants said that they received their news from non-traditional sources such as MySpace or YouTube. The campaign was widely seen as an example of the growing influence of the internet on United States politics; further evidenced by the founding of viral video producers like Brave New Films.
During the United States presidential election, 2012, Obama Style and Mitt Romney Style, the parodies of Gangnam Style, both peaked on Election Day and received approximately 30 million views within one month before Election Day.Mitt Romney Style, which negatively portrays Mitt as an affluent, extravagant and arrogant businessman, received an order of magnitude views more than Obama Style.
The web traffic gained by viral videos allows for advertising revenue. The YouTube website is monetized by selling and showing advertising. According to the New York Times, YouTube uses an algorithm called "reference rank" to evaluate the viral potential of videos posted to the site. Using evidence from as few as 10,000 views, it can assess the probability that the video will go viral. If it deems the video a viable candidate for advertising, it contacts the original poster by e-mail and offers a profit-sharing contract. By this means, such videos as "David After Dentist" have earned more than $100,000 for their owners. One successful YouTube video creator, Andrew Grantham, whose "Ultimate Dog Tease" had been viewed more than 170,000,000 times (as of June 2015), entered an agreement with Paramount Pictures in February 2012 for the development of a feature film. The film was to be written by Alec Berg and David Mandel. Pop stars such as Justin Bieber and Esmée Denters also started their careers via YouTube videos which ultimately went viral. By 2014, pop stars such as Miley Cyrus, Eminem, and Katy Perry were regularly obtaining web traffic in the order of 120 to 150 million hits a month, numbers far in excess of what many viral videos receive.
Companies also use viral videos as a type of marketing strategy. The Dove Campaign for Real Beauty is considered to have been one of the first viral marketing strategies to hit the world when Dove released their Evolution video in 2006. Their online campaign continued to generate viral videos when Real Beauty Sketches was released in 2013 and spread all throughout social media, especially Facebook and Twitter.