Hi there,
I optimized a campaign at popads and running it profitable. Where should I go next? Any recommendations? 
Popcash, Propeller, Zeropark, Adcash, Mediahub, etc. are good options to scale your campaign.
Hey germoney,
The best networks for the popup/popunder ads are Adcash, Popads, Popcash, Exoclick and Propeller Ads. All of these have quite a lot of traffic and good quality overall. Indeed, if you wanna stick only to this ad format, the options I referred are your best shot.
On the other hand, you may try to launch some other spots, since they have many benefits, such as a lower cost, more traffic, and a higher traffic quality. In case you’re able to make money from the pop format, you’ll easily make money for the same offer using the other ad formats.
The best ad formats are usually various banners. If it sounds interesting for you, probably the best network to start would be Exoclick. It has very impressive statistical and targeting tools, which will help you cut all the segments that aren’t working. If popads perform well I’d launch 2-3 spots (300x100, 300x50, 300x250) for this offer and expect them to be very good.
Good luck!
Cheers!
Signed Up with Exoclick and submitted my ads yesterday but they're still not approved. Is this usual? How long does it take?
Ok seems like they don't review paused campaigns. Activated the campaign and they approved it quite quickly. 
Generally speaking whats better CPM or CPC?
For my first test I used the default banners from the advertiser. CTR is at about 0,3% at the moment. I should make some custom creatives! How do I get started with banner design?
My biggest problem with exoclick at the moment is the traffic quality. Im pretty sure a lot of my traffic is bot traffic.
- most of my clicks had javascript disabled
- i got multiple clicks from same ip
- more english than local language in HTTP_ACCEPT_LANGUAGE
Is this kind of bot traffic always the case for banner ads or did I something wrong?
Whats the best way to filter bot traffic. I know how I can detect bots but whats the best way to stop them. Disable the whole placement?
How to start with banner design? Learn photoshop
Not the answer you wanted to hear, but really, it's what most people use, the basic functions are not so complicated so its a matter of a few days to learn those. You can always outsource this too.
Exoclick : there are bots for sure, like with any other traffic source, I don't think exo in particular would be one of the worst when it comes to bots. But there is a lot of bad placements for sure since they have so many publishers. The best way to deal with this is to block/disable the placement as you suggested. Keep one thing in mind before cutting anything thou - you pay on CPM basis I guess, so a few bot clicks form one IP are not such a problem, they won't influence the rate you are paying. So in case there is also good converting traffic coming from the placement, you can ignore the bots ... always look at the bottom line, does the placement give you decent ROI or not?
To stay away from the lower quality traffic, focus on premium placements first, the situation is worse in RON obviously.
Uploaded three new banners today. Some of them are ugly as hell, but lets try them.
I did the math and figured out I need a CTR of above 1%, is that reasonable?
Can't wait for the results 
Yeah found out one banner converted way better than all the others. So I should watch EPM instead of CTR.
Still not sold on traffic quality though. Zone Ids suggest that a lot of placements are in the footer.
I guess a lot of publishers sell the above the fold space as CPC and the crap at the footer as CPM.
This would make sense for them, right?
I can target zone ids only for premium inventory, right?
Another think I'd like to know: Is banner serving random or do they use some sort of algorithm to optimize for eg. CTR?
Thanks matuloo your answers are very helpful! 
Why is it that some banners convert better than others when the landing page is still the same? Do they attract a different kind of user?
One of my banner has 7x conversion rate than the default banners. And that's the first banner I created in my life. So I don't even know what I'm doing 
I'm so excited because I can see the potential in banners. So much more to optimize than simple pops. Could be very profitable. 
Today was pretty eye-opening for me

It deals with adult dating specifically, but the core idea is transferable to more verticals.