Desktop ribbon image:
Ad1_1380_90.png
Desktop hover image:
Ad1_1380_600.png
Mobile ribbon image:
Mobile hover image:

Leaderboard Ad:

Desktop
Ad7_970_90.png
Mobile
Ad7_320_50.png

Ad Three Tile:

AdTile5_300_250.png
AdTile3_300_250.png
AdTile1_300_250.png

Ad Horizontal:

Desktop
Ad4_970_250.png
Mobile
Ad4_300_250.png

Single Tile:

AdTile6_300_250.png

Single Vertical:

Desktop
Ad9_300_600.png
Mobile
AdTile3_300_250.png