The Definitive Guide to ad exchange
By sending bid requests to several ad exchanges, you’re capable of reap the benefits of whichever you can return the best CPM rather than locking you into the outcome of just one advert auction.提供了较安全的投放环境：广告网络在采购媒体资源时往往选择比较高质量的网站资源，从而比较能保证投放环境的