I always assumed these were the standards: http://www.iab.net/guidelines/508676/508767/displayguidelines http://www.iab.net/guidelines/508676/508767/displaygui

I always assumed these were the standards: http://www.iab.net/guidelines/508676/508767/displayguidelines http://www.iab.net/guidelines/508676/508767/displayguideline...