Undertone Guarantees You Can See Its Ads

In the digital ad world, 2013 is thought to be the year the medium finally "grows up" and publishers start only selling ads people can actually see. That is, this is supposed to be the year the industry rallies around the viewable ad impression

Link de la noticia: 
http://www.adweek.com/news/technology/undertone-guarantees-you-can-see-its-ads-1...