LUMA Partners founder and CEO Terence Kawaja has long been the grand organizer of the ad tech market. His LUMAscapes have become the most recognizable and easily refereneable maps of who’s involved in the buying and selling of ad inventory, be it display, search, social, video, mobile, etc. Now the Interactive Advertising Bureau (IAB) has unveiled its own take on the ad tech scene, dubbed the IAB Digital Advertising Arena. Adweek