I work on Infinityads.com. If you do not care more pop, you can try to it.
On the other hand, I don't think pop up / pop under will die at this moment. Even though lots of pop up blocker and Microsoft SP2 appear, the affiliate program like fast click, advertising.com , infinityads.com try to find out and bypass the blocker and SP2. In addition, pop is easiest ways to generate revenue if the website has already be got traffic.