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A web banner or banner ad is a form of advertising on the World Wide Web. This form of
online advertising entails embedding an advertisement into a web page. It is
intended to attract a web surfer to a
website by linking them to the web site
of the advertiser. The advertisement is constructed from an image (GIF, JPEG), JavaScript program or multimedia object employing
technologies such as Java, Shockwave or Flash, often
employing animation or sound to maximize presence. Images are usually in a high-aspect ratio shape. That is to say, either wide
and short, or tall and narrow, hence the reference to banners. These images are usually
placed on web pages that have interesting content, such as a newspaper article or an opinion piece.
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