I used some mobile ads companies, the history is like:
AdMob: As a Google company, it's not bad. However, it doesn't allow HTML ads in mobile apps anymore, so it's hard to use it in my Air apps, unless using a 3rd-party ANE but I don't want to do that.
MobClix: Not bad at first, but after 2 years, I realized that it DOESN'T PAY me! Don't use this shxt!
PlacePlay: Since I usually make apps with Air, PlacePlay was a good choice because it provided an official ANE for Air. The EPC was high as well. However, it is closed now, and owed me a lot.
LeadBolt: I finally found this good mobile ads company! Firstly, it really paid me via PayPal! And not like AdMob, LeadBolt allows developers to use HTML ads in mobile apps, so I can use a webview to show the ads in an Air mobile app. The developer portal is also good, like that the revenue information are like real-time.
I recommend LeadBolt when choosing a mobile ads company! Sign up here: http://leadbolt.com/developers_signup.php?ref=10052403
