The AdMob library allows you to add ads served by AdMob to your application. See the AdMob Tutorial. This library requires some additional configuration as described in the tutorial. By default the view must be set to a size of 320dip x 50dip. Otherwise it will not display. Tablets support three additional sizes: IAB_BANNER - 468dip x 60dip, IAB_MRECT - 300dip x 250dip and IAB_LEADERBOARD - 728dip x 90dip. The size of AdView must match the selected size. This is an 'Activity Object', it cannot be declared under Sub Process_Globals.