A graphical web advertising asset that can be shown across various websites. The largest and most popular image ad network is run by Google, and allows ads in the following common sizes:
250 x 250 – Square
200 x 200 – Small Square
468 x 60 – Banner
728 x 90 – Leaderboard
300 x 250 – Inline Rectangle
336 x 280 – Large Rectangle
120 x 600 – Skyscraper
160 x 600 – Wide Skyscraper
300 x 600 – Half-Page Ad
970 x 90 – Large Leaderboard