CHICAGO TRIBUNE -- June 16 -- New
YouTube feature, called Insight, provides age, gender, geographic location and other data about video viewers, making the site "the world's biggest focus group". Marketers and advertisers use the data to decide how to target their next round of ads or where bands should tour,
said Tracy Chan, product manager of YouTube Insight. Before Insight, success onYouTube was measured primarily in one way: by the sheer number of "views," or times a video was watched.
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