I have been using this site www.seeadwords.com to see adwords ads in other country (once i selected the country which i want to view) , but recently this site was down , anyone can enlighten me how to see adwords ads in other country , like US . Thanks.
Go to www.google.com and perform your search. Then add &gl=US to the end of the URL. So http://www.google.com/search?q=widgets&gl=US will show you ads for the US market.
Try: google.com/adpreview its designed so you won't be able to gain impressions on your own and competitor sponsored ads.