06/15/2009 05:12 am ET Updated May 25, 2011

Hulu Challenges Nielsen's Count Of Its Audience

Any way the streams of shows like "Fringe" and "30 Rock" are counted, it is clear that Hulu's growth has been explosive, up 490 percent year over year, according to Nielsen Online. Hulu executives, however, are fretting that the company, one of the leading purveyors of ratings data, is undercounting the site's visitors. They say Nielsen's numbers hurt Hulu's perception among advertisers and the press.

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