On January 27, 2015, YouTube announced that HTML5 would be the default playback method on supported browsers. YouTube used to employ Adobe Dynamic Streaming for Flash,[76] but with the switch to HTML5 video now streams video using Dynamic Adaptive Streaming over HTTP (MPEG-DASH), an adaptive bit-rate HTTP-based streaming solution optimizing the bitrate and quality for the available network.[77]

Link economics -- For years, people in media and tech proclaimed the link economy. The idea was that you'd give away material, welcome people to link to it, and those links would bring new audiences that you could then turn into customers. But there is a basic problem, in that very few people actually click links that require them to go to other sites. As the Journal pointed out, many people simply watch a video hosted on YouTube and embedded elsewhere and don't actually visit Google's site, reducing the ability to display ads.
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YouTube Go is an Android app aimed at making YouTube easier to access on mobile devices in emerging markets. It is distinct from the company's main Android app and allows videos to be downloaded and shared with other users. It also allows users to preview videos, share downloaded videos through Bluetooth, and offers more options for mobile data control and video resolution.[225]
YouTube featured an April Fools prank on the site on April 1 of every year from 2008 to 2016. In 2008, all links to videos on the main page were redirected to Rick Astley's music video "Never Gonna Give You Up", a prank known as "rickrolling".[236][237] The next year, when clicking on a video on the main page, the whole page turned upside down, which YouTube claimed was a "new layout".[238] In 2010, YouTube temporarily released a "TEXTp" mode which transformed colors in videos to random uppercase letters "in order to reduce bandwidth costs by $1 per second."[239] The next year, the site celebrated its "100th anniversary" with a range of sepia-toned silent, early 1900s-style films, including a parody of Keyboard Cat.[240] In 2012, clicking on the image of a DVD next to the site logo led to a video about a purported option to order every YouTube video for home delivery on DVD.[241] In 2013, YouTube teamed up with satirical newspaper company The Onion to claim that the video sharing website was launched as a contest which had finally come to an end, and would announce a winner of the contest when the site went back up in 2023.[242] In 2014, YouTube announced that it was responsible for the creation of all viral video trends, and revealed previews of upcoming internet memes, such as "Clocking", "Kissing Dad", and "Glub Glub Water Dance".[243] The next year, YouTube added a music button to the video bar that played samples from "Sandstorm" by Darude.[244] In 2016, YouTube introduced an option to watch every video on the platform in 360-degree mode with Snoop Dogg.[245]
A TiVo service update in July 2008 allowed the system to search and play YouTube videos.[141] In January 2009, YouTube launched "YouTube for TV", a version of the website tailored for set-top boxes and other TV-based media devices with web browsers, initially allowing its videos to be viewed on the PlayStation 3 and Wii video game consoles.[142][143] In June 2009, YouTube XL was introduced, which has a simplified interface designed for viewing on a standard television screen.[144] YouTube is also available as an app on Xbox Live.[145] On November 15, 2012, Google launched an official app for the Wii, allowing users to watch YouTube videos from the Wii channel.[146] An app is also available for Wii U and Nintendo 3DS, and videos can be viewed on the Wii U Internet Browser using HTML5.[147] Google made YouTube available on the Roku player on December 17, 2013,[148] and, in October 2014, the Sony PlayStation 4.[149] In November 2018, YouTube launched as a downloadable app for the Nintendo Switch.[150]
On February 28, 2017, in a press announcement held at YouTube Space Los Angeles, YouTube announced the launch of YouTube TV, an over-the-top MVPD-style subscription service that would be available for United States customers at a price of US$35 per month. Initially launching in five major markets (New York City, Los Angeles, Chicago, Philadelphia and San Francisco) on April 5, 2017,[220][221] the service offers live streams of programming from the five major broadcast networks (ABC, CBS, The CW, Fox and NBC), as well as approximately 40 cable channels owned by the corporate parents of those networks, The Walt Disney Company, CBS Corporation, 21st Century Fox, NBCUniversal and Turner Broadcasting System (including among others Bravo, USA Network, Syfy, Disney Channel, CNN, Cartoon Network, E!, Fox Sports 1, Freeform, FX and ESPN). Subscribers can also receive Showtime and Fox Soccer Plus as optional add-ons for an extra fee, and can access YouTube Premium original content (YouTube TV does not include a YouTube Red subscription).[222][223]
^ Popper, Ben (November 9, 2017). "YouTube says it will crack down on bizarre videos targeting children". The Verge. Archived from the original on November 16, 2017. In August of this year, YouTube announced that it would no longer allow creators to monetize videos which "made inappropriate use of family friendly characters." Today it's taking another step to try and police this genre.
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Both private individuals[246] and large production companies[247] have used YouTube to grow audiences. Independent content creators have built grassroots followings numbering in the thousands at very little cost or effort, while mass retail and radio promotion proved problematic.[246] Concurrently, old media celebrities moved into the website at the invitation of a YouTube management that witnessed early content creators accruing substantial followings, and perceived audience sizes potentially larger than that attainable by television.[247] While YouTube's revenue-sharing "Partner Program" made it possible to earn a substantial living as a video producer—its top five hundred partners each earning more than $100,000 annually[248] and its ten highest-earning channels grossing from $2.5 million to $12 million[249]—in 2012 CMU business editor characterized YouTube as "a free-to-use ... promotional platform for the music labels".[250] In 2013 Forbes' Katheryn Thayer asserted that digital-era artists' work must not only be of high quality, but must elicit reactions on the YouTube platform and social media.[251] Videos of the 2.5% of artists categorized as "mega", "mainstream" and "mid-sized" received 90.3% of the relevant views on YouTube and Vevo in that year.[252] By early 2013 Billboard had announced that it was factoring YouTube streaming data into calculation of the Billboard Hot 100 and related genre charts.[253]
According to ChuChu, its two largest markets are the United States and India, which together generate about one-third of its views. But each month, tens of millions of views also pour in from the U.K., Canada, Mexico, Australia, and all over Asia and Africa. Roughly 20 million times a day, a caretaker somewhere on Earth fires up YouTube and plays a ChuChu video. What began as a lark has grown into something very, very big, inflating the company’s ambitions. “We want to be the next Disney,” Chandar told me.
In August 2008, a US court ruled in Lenz v. Universal Music Corp. that copyright holders cannot order the removal of an online file without first determining whether the posting reflected fair use of the material. The case involved Stephanie Lenz from Gallitzin, Pennsylvania, who had made a home video of her 13-month-old son dancing to Prince's song "Let's Go Crazy", and posted the 29-second video on YouTube.[325] In the case of Smith v. Summit Entertainment LLC, professional singer Matt Smith sued Summit Entertainment for the wrongful use of copyright takedown notices on YouTube.[326] He asserted seven causes of action, and four were ruled in Smith's favor.[327]
The way advertising works with YouTube is probably one of the most complicated things that comes with trying to make money off of YouTube. The real estimate comes out to about $7.50 per 1,000 impressions. The difficult part is actually defining the word ‘impressions.’ The only time you make money on YouTube is when someone interacts with your ad or when it leaves an ‘impression’ on them.
All the estimates by research firms and analysts, says Kirjner, are "based more on belief and anecdotes than on truly representative data. What's more -- beyond anecdotes either shared by Google or collected through discussions with ad buyers, creators and multichannel network operators -- we know very little about what is available on YouTube, what people watch and how much it gets watched."
In February 2015, YouTube released a secondary mobile app known as YouTube Kids. The app is designed to provide an experience optimized for children. It features a simplified user interface, curated selections of channels featuring age-appropriate content, and parental control features.[60] Later on August 26, 2015, YouTube launched YouTube Gaming—a video gaming-oriented vertical and app for videos and live streaming, intended to compete with the Amazon.com-owned Twitch.[61]