In the Upfront, GroupM Is Sticking With Nielsen for Now, but It’s Testing iSpot, Comscore, VideoAmp for the Future Insights Jun 6 Written By Kaius Foxx iSpotNextTV Kaius Foxx
In the Upfront, GroupM Is Sticking With Nielsen for Now, but It’s Testing iSpot, Comscore, VideoAmp for the Future Insights Jun 6 Written By Kaius Foxx iSpotNextTV Kaius Foxx