关键驱动之一是发行商认识到采用按展示付费的广告（CPM）时，在他们直接销售和通过广告网络商销售存货之间存在着巨大的差异。
One of the key drivers is the huge disparities in CPMs that publishers realise when they sell directly and when remnant inventory is sold via ad networks.
他们可以选择加入Lijit广告网络，通过这些数据将展示广告显示在他们的网站上，而不仅仅是显示在搜索结果中。
And they have an option to join the Lijit AD network to put display ads up on their sites - not just on search results - targeted via that data.
或者你的广告是每个访问者只展示一次（惟一印象）或者是任意多次，这些都需要你与广告网络商或者站长来一起确定。
Whether your ad is shown only once to each visitor (Unique Impressions) or any number of times – is something that you will have to work out with the nad-network or the website.
或者你的广告是每个访问者只展示一次（惟一印象）或者是任意多次，这些都需要你与广告网络商或者站长来一起确定。
Whether your ad is shown only once to each visitor (Unique Impressions) or any number of times – is something that you will have to work out with the nad-network or the website.
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