Web advertisements

The first advertisements on the Web were whatever size the designer chose–the designer probably did the ad as well as the page. As internet advertising matured, predefined sizes became helpful, so that page designers would know how big a hole to leave for an ad, and ad agencies could prepare advertisements that would fit into many different Web pages, as they do in newspapers. The Ad Unit Task Force of the Internet Advertising Bureau (www.iab.net) has identified standard “Interactive Marketing Units.”

Name Size of ad in pixels
(vertical × horizontal)
Area
(pixels)
Wide skyscraper 600 × 160 96,000
Vertical rectangle 400 × 240 96,000
Large rectangle 280 × 336 94,080
Medium rectangle 250 × 300 75,000
Skyscraper 600 × 120 72,000
Square pop-up 250 × 250 62,500
Full banner 60 × 468 28,080
Vertical banner 240 × 120 28,800
Full banner with vertical
navigation bar
72 × 392 28,224
Rectangle 150 × 180 27,000
Square button 125 × 125 15,625
Half banner 60 × 234 14,040
Button #1 90 × 120 10,800
Button #2 60 × 120 7200
Microbutton, microbar 31 × 88 2728
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