CHICAGO - Although digital video is different than television, video publishers need to manage their sales in a TV-like way, selling inventory on the totalnumber of views or Gross Rating Point, GRP, says Michael Glantz, analyst at Forrester Research, in this interview with Beet.TV We spoke with him about his recent study of digital video and GRP's, at the Beet.TV Video Advertising Summit at the Starcom MediaVest offices in Chicago. The event was sponsored by Adobe Video Advertising.