Banner ad

A banner is a graphic image (static, animated, or rich media) that is placed on web sites as an advertisement. Banners are commonly used for brand awareness and generating sales. A rectangular online advertisement in the form of a graphic image that runs across the top or bottom of a web page. Banner ads are historically GIF images. Many ads are animated GIFs since animation has been shown to be more effective. The standard banner is 468 pixels wide by 60 pixels high.
Marketing Strategy: Banner Advertising