Wednesday, July 15, 2009

Web banner

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 traffic to a website by linking to the website of the advertiser. 

The advertisement is constructed from an image JavaScript program or multimedia object employing technologies such as Silver light, Java, Shockwave or Flash, often employing animation, sound, or video to maximize presence. Images are usually in a high-aspect ratio shape 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. The web banner is displayed when a web page that references the banner is loaded into a web browser. This event is known as an impression.

When the viewer clicks on the banner, the viewer is directed to the website advertised in the banner.
This event is known as a click through. In many cases, banners are delivered by a central ad server. This payback system is often how the content provider is able to pay for the Internet access to supply the content in the first place.

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