Video killed the radio star - now video games are doing the same for TV. Twitch lets you stream live video of yourself over the internet, and has grown enormously since it launched in 2011. Now with more than 45 million visitors and more than a million new videos a month, the vast majority of which are of people playing games. No wonder Google is reportedly holding talks about buying the firm for $1 billion, Twitch's popularity was given an extra boost with the release of the Xbox One and PlayStation 4, which both let players stream their game at the push of a button. A webcam can let the player add their face to the stream. Twitch now beats Facebook, Amazon and Tumblr in terms of peak internet traffic in the US, behind only Netflix, Google - including YouTube -and Apple.
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