What is the difference between an interstitial ad and a superstitial ad?

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Interstitial ads are placed between the current Web page a user is viewing and the destination page for the link they have clicked. The interstitial ad typically gives way automatically to the page the user has requested after allowing enough time for the ad to be read. Interstitials use “dead time” in between the loading of requested pages. However, users may become annoyed because they believe that while they are waiting for the ad to load, the page they want to view is delayed. Superstitials, on the other hand, are preloaded into the cache of the browser and do not play until they are fully loaded. When the file is completely downloaded, just like an interstitial, it will wait until the user clicks a link to move to a new page before it opens in a separate window.

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