Pop-ups are common yet annoying form of advertising on the Internet. If you’re just trying to make much money as possible from your website, you can experiment with them.
If you want to increase traffic and to create loyal visitors, however, you probably should stay away from them. Just consider the hundreds of pop-up blockers are there: there is a reason why they are so popular.
Ad networks that use pop-ups:
* Tribal Fusion
* PayPopup
* PopupAd
* Adversal