Digital media company and ad sales platform Ziff Davis is expanding its network of properties even further with the purchase of NetShelter's display advertising business, a well-placed source has info
<a target="_blank" href="http://www.netshelter.com/news/item/227-netshelter-technology-media-unveils-inpowered-ad-platform">Nearly a year ago</a>, tech blog advertising network <a target="_blank" href