News Corp is the latest publisher to throw its weight behind making programmatic ad sales “premium,” in an attempt to stave ad dollars from flowing to the digital advertising giants Facebook and Google, as its traditional business see revenue declines. News Corps’ revenues dropped $45 million in the last quarter to reach $2.12 billion. CEO Robert Thomson said the company is “aggressively” moving to digital, and that includes beefing up its digital advertising. During the last quarter, digital ad revenue accounted for 27% of the company’s news segment. The ad tech push comes at a time when Google and Facebook are under more pressure than ever to demonstrate their worth in the digital advertising space. Google this week announced a…