728x90: Leaderboard, often placed at the top of the page.

300x250: Medium rectangle, a popular and versatile size.

336x280: Large rectangle, another popular choice for its larger size.

160x600: Wide skyscraper, a tall and narrow ad, often placed on the side of a page.

300x600: Large skyscraper (or half page), provides more ad space.

970x250: Billboard, a large ad format for high-impact branding.

320x50: Mobile leaderboard, a common banner size for mobile devices.

Commonly used standard sizes:

Mobile-specific sizes:

320x100: Large mobile banner, a taller mobile ad format.

300x250: Medium rectangle (also widely used on desktop).