The kinds of advert exchanges change via the exclusivity of your marketplace and the kinds of deals that publishers can make with advertisers:垂直类广告网络根据品牌广告主的主流需求，来采购相关的垂直媒体，譬如汽车类广告有很大的投放预算，有些广告网络就包断相应的汽车类媒体频道资源，整合成一个媒体包卖给广告主，从中赚取差价，国内的易传媒属于这一类。With the above mentioned explanation, we