In its earlier days, Tudou was all about user-generated content (UGC), and was home to video clips of Chinese Internet sensations like the Back Dorm Boys.

土豆网创立之初全是用户原创内容（UGC），也是“后舍男生”等网络流行人物的视频大本营。

youdao

The new software from his San Francisco-based company DoubleTwist will allow users to share both user-generated and professionally created music, photos and video clips between computers, mobiles and game consoles.

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That means views of an artist's music video as well as user-generated clips that use the official song are being tallied along with radio airplay, paid downloads and other factors that make up Billboard's singles charts.

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By combing through its clients' clips, the service creates signatures that allow the media companies to identify their content on user-generated video sites.

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