In-stream ads play before or during YouTube partner videos and can be skipped after 5 seconds, with payment only occurring if 30 seconds are watched. In-slate ads are shown at the beginning of longer videos and viewers can choose between 3 ads, with payment based on viewership. In-search ads are like AdWords text ads located at the top right of search results, paying only on views. In-display ads appear on embedded YouTube content and also pay based on views.