I have tried integrating mobclix and a admob. Both of them dont not show up on my android phone. They show up fine on the emulator though. I was thinking it could be ad blockers because I bought a used rooted phone. How do I tell if I have ad blockers? If I do, how do I get rid of them? What other things could be causing this?
Connect your mobile phone to your pc(using USB), and watch the LogCat when you run the app on the mobile, the AdMob library prints on the LogCat, informations about pulling ads from the internet, if you have ad blocked phone, you will notice in the LogCat some information about Can't Connect to Server or equivalent, in some cases it tells you, there is no enough ads to show in your app, in this case go to your account on AdMob and activate Google Ad Sense in the Application Settings..
LogCat window can be found under Window menu in Eclipse IDE, under sub category for Android. or read this answer to show LogCat running logcat on Eclipse
Best Regards