206. Online Advertising › how it works › how to show your message: types of display advertisingAs the name suggests, these are adverts which pop up, or under, the webpage being viewed. They open in a new, smaller window. You will see a pop-upstraight away, but will probably only become aware of a pop-under after youclose your browser window.These were very prominent in the early days of online advertising, but audienceannoyance means that there are now “pop-up blockers” built into most goodweb browsers. This can be problematic as sometimes a website will legitimatelyuse a pop-up to display information to the user.Floating advertThis advert appears in a layer over the content, but is not in a separate window.Usually, the user can close this advert. In fact, best practice dictates that aprominent close button should be included on the advert, usually in the topright hand corner. Floating adverts are created with DHTML or Flash, and floatin a layer above a site’s content for a few seconds. Often, the animation ends bydisappearing into a banner advert on the page.Figure 8.4 An example of an overlay.Wallpaper advertThis advert changes the background of the web page being viewed. Usually, itis not possible to clickthrough this advert. The effect of these adverts is difficultto measure as there is no clickthrough, and its chief purpose is branding as thebranded page will be visible so consistently. 203
206. Online Advertising › how it works › how to show your message: types of display advertisingAs the name suggests, these are adverts which pop up, or under, the webpage being viewed. They open in a new, smaller window. You will see a pop-upstraight away, but will probably only become aware of a pop-under after youclose your browser window.These were very prominent in the early days of online advertising, but audienceannoyance means that there are now “pop-up blockers” built into most goodweb browsers. This can be problematic as sometimes a website will legitimatelyuse a pop-up to display information to the user.Floating advertThis advert appears in a layer over the content, but is not in a separate window.Usually, the user can close this advert. In fact, best practice dictates that aprominent close button should be included on the advert, usually in the topright hand corner. Floating adverts are created with DHTML or Flash, and floatin a layer above a site’s content for a few seconds. Often, the animation ends bydisappearing into a banner advert on the page.Figure 8.4 An example of an overlay.Wallpaper advertThis advert changes the background of the web page being viewed. Usually, itis not possible to clickthrough this advert. The effect of these adverts is difficultto measure as there is no clickthrough, and its chief purpose is branding as thebranded page will be visible so consistently. 203
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