Google Developers Group
There are other companies that provide such services, like http://kiip.me/ for example, which specializes on adds and in-app purchases for mobile games, and the the income is much higher than adMob.
Thank you for sharing that one.
Do you have a list of, and know of any other ad services that you could share and recommend, that serve ads in banner format. For example, for simple banner placement in certain spot in a mobile app? (like smaato.com is another similar). Maybe Kiip.me can do this style too, though not sure from Web site.
Will try Kiip.me out sometime soon. Sounds useful in achievement situations, in mobile game as you say. It looks like Tap.me style of ad/achievements. Have been in touch with Tap.me so now looking in to how their service works as well.
Check out https://www.adwhirl.com/ It's something that has been launched by AdMob and allows you to set up rotating ads from many ad networks. I'm currently using AdMob and plan to switch to AdWhirl to try out several different networks and see which have the highest eCPM.