Boasting larger real estate, Google’s newest ad units for AdSense,
introduced today, are meant to showcase rich ad creatives. The ad units are 970 x 250 Billboard and 300 x 1050 Portrait.
Due to their size, publishers can place just one of these units per page. While they are designed to house rich media ads, both of the new units can accommodate standard text ads as well as image ads.
As with other ad units, smaller-sized image ads may appear in within these new ad units to increase competition in the auction. For example, a 300 x 250 ad would serve in the 970 x 250 ad unit and a 160 x 600 would serve in the 300 x 1050 ad unit.
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