Banner sizes 468 x 60, 234 x 60, 120 x 60, 120 x 600, 125 x 125, 160 x 600, 728 x 90

Banner (banner ad) - The first format of ad to appear online - around 1994; see Hotwired -banners are still the most popular form of online advertising. Banner ads are normally described by their sizes, which are fixed in order for web developers to design-in spaces for ads. Banner sizes (in pixels) include:
• 468 x 60 - the most common, and so de facto standard, size;
• 234 x 60 - the half-banner;
• 120 x 60 and 125 x 125 -button size;
• 120 x 600 and 160 x 600 - skyscrapers, which appear down the side of a web page.
Banner sizes are not universal across all ad servers, however. For example, Google's AdSense uses 728 x 90 leaderboards and 300 x 250 inline rectangles that are unique to that service.
In order to show some movement - and so attract attention - some banners use animated GIFs. Although the term banner is normally associated with fixed-position ads, pop-up ads are also sometimes described as banners. More recently, other types of banner have been added. These include:
The expandable banner - where an ordinary banner (normally 468 x 60) expands to three or four times its size as a mouse is moved over it, and collapses back to a banner size when the mouse is moved away.
The margin landscape banner - this takes advantage of the fact that many web sites are designed for smaller screens than are being used by some surfers. For example, a common width for web pages is 800 pixels, yet some users will have a screen that will accommodate 1024 - leaving 'blank' screen down the side. The margin landscape banner takes advantage of this empty margin by filling it with an ad that appears like scenic background, not moving when the user scrolls down the page.
The full-scale takeover banner - as its name suggests, this banner covers the entire page content for a limited, specified time before disappearing. It has a transparent background so only its images and content are visible over the host page's content.The full-scale landscape banner - a rarely used application that works best on pages that not only have white backgrounds, but plenty of white space. The ad, normally a branding imprint, appears behind the content of the page and can only be seen through the transparent content, rather like a scenic background image. It does not move when the user scrolls down the page. The sticky banner - this can vary in size, but is usually relatively small (for example 88 x 31) and sticks to the screen as the user scrolls down the page, meaning it is always in view. Search&display banners - allow searches to take place within the banner.