What is your experience working with either private or open advertising marketplaces?
Although the question asks about your work experience, the main goal of this question is to gauge your knowledge of the differences between private and open Advertising Marketplaces. If you do not have any direct experience with either of these marketplace types, share what you know and include any pro's and con's of either.
"I have over five years of experience working with an open Advertising Marketplace, where I learned the differences between the two types. Open marketplaces are not restricted with regards to who can purchase and who can sell ads, while a private marketplace includes a single publisher selling their ads to selected group of marketers, giving the publisher more control. Whether either type of marketplace is better for a marketer depends on target audiences and budgets."
