Ad Art Requirements & Upload 

Print Advertising

Web Advertising 

If you purchased a web ad placement, your print ad will be color converted and used online.
You may upload separate art for use online.

To optimize your ad for web it should comply to the following specs:

Resolution: 72ppi or higher 
Type size: No smaller than 13pt
Portrait ads: 244px X 666px
Landscape ads: 630px X 245px