Interstitial Page
s: [inter] Interstitial pages are a form of online advertising that appears between web pages that the user requests. Thus when a user elects to enter or exit a web-site, a page appears with its advertisement, in place of the requested page, the user then needs to select from that page to receive the page requested (or the advertisement page will disappear after a fixed time). This is a form of interruption advertising (similar to broadcast models) but this form of web advertising breaks information design rules, as the user had a certain set of expectations when making the page selection, the interstitial page did not match expectations.