Target Tree Technology - AdMob's Target Tree allows you
to make sure your ads only reach the users you want. This
powerful technology enables you to target based on region,
platform, device capabilities, and manufacturer. So if
you want your ads to reach only Nokia users on MIDP 2.0
devices in Europe who have polyphonic ringtone support,
we've got you covered. You're paying per click, and we
want to make sure you get the right click.