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Twitch.tv is a live streaming video platform owned by Twitch Interactive, a subsidiary of Amazon.com.〔 Introduced in June 2011 as a spin-off of the general-interest streaming platform Justin.tv, the site primarily focuses on video gaming, including playthroughs of video games, broadcasts of esports competitions, and more recently, creative content. Content on the site can either be viewed live, or viewed via Video on demand. The popularity of Twitch would eclipse that of its general-interest counterpart; in October 2013, the website had 45 million unique viewers,〔 and by February 2014, it was considered the fourth largest source of peak Internet traffic in the United States. At the same time, Justin.tv's parent company was re-branded as Twitch Interactive to represent the shift in focus – Justin.tv was shut down in August 2014. The site has also branched out into music-related streams and content. In 2015, Twitch announced it had more than 1.5 million broadcasters and 100 million visitors per month. == History == When Justin.tv was launched in 2007 by Justin Kan and Emmett Shear, the site was divided into several content categories. The gaming category grew especially fast, and became the most popular content on the site. In June 2011, the company decided to spin off the gaming content as Twitch.TV, inspired by the term twitch gameplay. It launched officially in public beta on June 6, 2011. Since then, Twitch has attracted more than 35 million unique visitors a month.〔 Twitch had about 80 employees in June 2013, which increased to 100 by December 2013.〔 The company was headquartered in San Francisco's Financial District.〔 Twitch has been supported by significant investments of venture capital, with in 2012 (on top of originally raised for Justin.tv), and in 2013. Investors during three rounds of fund raising leading up to the end of 2013 included Draper Associates, Bessemer Venture Partners and Thrive Capital.〔 In addition to the influx of venture funding, it was believed in 2013 that the company had become profitable.〔 Especially since the shutdown of its direct competitor Own3d.tv in early 2013, Twitch has become the most popular e-sports streaming service by a large margin, leading some to conclude that the website has a "near monopoly on the market". Competing video services, such as YouTube and Dailymotion, began to increase the prominence of their gaming content to compete, but have had a much smaller impact so far.〔 As of mid-2013, there were over 43 million viewers on Twitch monthly, with the average viewer watching an hour and a half a day. As of February 2014, Twitch is the fourth largest source of Internet traffic during peak times in the United States, behind Netflix, Google, and Apple. Twitch makes up 1.8% of total US Internet traffic during peak periods. On March 24, 2015 Twitch was reportedly hacked and users’ details compromised. Users’ accounts were reset, but it does not seem that any credit card or other financial information has been made available. However, passwords do appear to have been leaked and the company recommends that users reset their details on any site where they use the same password. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Twitch.tv」の詳細全文を読む スポンサード リンク
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