Taken from google adsense Program Policies: "Sites may not change user preferences, redirect users to unwanted websites, initiate downloads, include malware or contain pop-ups or pop-unders ..." http://www.google.com/adsense/policies This is what you agreed to when you signed up to google adsense. I suggest you read it a few times and learn it, otherwise before long you'll probably end up receiving the dreaded email.
Yes! Adsense not supports CPM thing its basically work on nature of content & keyword optimization of your website! it is called as CPC
Not sure I really follow any of that...Adsense does not support CPM? That is not the case as there are CPM ads in Adsense. Or do you mean something different?
ok thanks everyone, i think i got my answer that adsense doesn't allow put with pop-under ads together. Thanks.
why not post the whole line. you make it sound like it's not allowed all together. you can use cpm ads and pop-unders. i have a site that uses both for a few years. google employees have been to my site.