Hi...I have a 468X60 banner google pack referral ad on my site . I have a little confusion . When I was selecting the ad unit , on the right hand side it showed "Targeted Countries" and there default was
India (I am in India) . There I added US . Does it mean that the referral ad unit will only be shown to visitors from US and India?...Should I add a huge list of countries there so that visitors
from other countries can also see the ad ?
Also I installed the preview tool and on my website,I right clicked and chose the 468X60 banner ad.Why does it only show contextual ad samples and why not referral ads?..How would I come to know is a user in Japan is able to see my Google Pack referral ad or not ?
Please help...Thanks in advance.