First you should decide which traffic source is the best for you. We have six different types, depending on your needs.
Mobile redirect: Websites that don't want mobile traffic can redirect their mobile visitors to a campaign leading them to your landing page
Popunder: When a desktop visitor on a websites perform an action (click) on their page they will get a popunder or popup with your campaign.
Mobile pop: Same as popunders, but regarding visitors from a mobile device.