Monetize the traffic to your WordPress site by displaying full page interstitial advertisement. Ads are displayed before a visitor to your site is shown an expected content page. Your ad can be in HTML format or load a page from another site using an iframe. You can specify how often the ad should be displayed and how long the ad is shown for before the visitor to your site is given an option to skip the ad. Interstitial Ads are proven to be effective and make good use of the traffic to your site by displaying interstitial ads http://wpaid.net/wpstitial-interstitial-ads-for-wordpress