Clicksor will be launching a new interstitial ad MarketPlace called AdPreference. An interstitial ad is one that appears as a full page in between web pages. I've received an email from Clicksor saying: "...As a publisher, you will be able to view the ads available for placement as an interstitial and choose whether you approve them or not. In the MarketPlace, your site is available for viewing by our advertisers, and of course, we let you set your own price!..."