Online audience measurement firm Quantcast has hired Todd Teresi as its chief revenue officer. Teresi, who is leaving Yahoo (NSDQ: YHOO) this month, had taken on handling the Publisher Channel last year and helped manage off-network partnerships like WebMD (NSDQ: WBMD), Turner & Cars.com. He was at Yahoo for over nine years. Before that, Teresi served in the tech M&A practice at PricewaterhouseCoopers. He’ll start his new job after Labor Day and will be charged with heading business development efforts. Release

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—AdAge: Quantcast doesn’t charge web publishers or ad agencies for using their data. But the San Francisco-based company may soon be rolling out services that will come with some sort of payment model. One thing Quantcast isn’t doing is heading into the ad network business, Teresi says. He tells AdAge, obliquely, “We look at how we enable the existing players to have a better digital-advertising opportunity.” Quantcast CEO Konrad Feldman adds that he sees the online ad business moving to an “impression-based economy”  and that the company’s business rests on the notion that display ads should be as targeted as search.