Hi I have noticed that my normal AdSense ads do not appear when browsing from mobile devices. Today I have tried to make a new Ad Unit under Mobile content and those do show up on my smartphone (HTC Radar) The thing is that these mobile Ad units show up as blank when I browse my blog on my Windows 7 PC. Is there a way to make it only show up on smartphones? I am using a Wordpress plugin called Quick AdSense for placement. Any tips and experiences would be very much appreciated.
try looking at them on another phone. it could be the one you are using. OR add your adsense code into your wordpress code manually and see if that works.