This interview is with Mark Kahn of TRAFFIQ.com, which is a marketplace for branded traffic inventory a bit like eBay. Publishers put their inventory on it, and media buyers can buy it. Traffiq is an unusual company for our interviews since it's raised quite a bit of VC capital. But they have a good model so it's worth reading about. Mark talks about TRAFFIQ's platform and inventory, and he shares how the level of information a seller provides can dramatically increase CPM prices.