Specs

Ad Sizes and Specs
Standard banner and text ad sizes:

Banner Ads:

120x120, 12k (Web)
120x240, 12k (Web)
370x47, 15k (Web)
97x194, 15k (Newsletters)
280x75, 15k (Stores Web)
600x40, 15k (Newsletters)
200x40, 12k (Web)
295x90, 12k (Newsletters)

Text Ads (Web): 40 characters