In the Upfront, GroupM Is Sticking With Nielsen for Now, but It’s Testing iSpot, Comscore, VideoAmp for the Future
Media buyer’s clients Unilever, Nestle, Ferrero, Dominos, TJX, Mars kicking tires on alternative currencies.
Media buyer’s clients Unilever, Nestle, Ferrero, Dominos, TJX, Mars kicking tires on alternative currencies.