The next generation of bannerexchange!
Here banners are shown and exchanged. 
But here the viewratio is not based on the number of views, but the klicks on the banner.
The advantage in this lies in the fact, that users of the exchange have to choose an attractive position for the banner to get more klicks, because only klicked banners are counted on the exchange account.
By using this kind of bannerexchange the effectiveness of the advertisement is highly increased.