It's interesting what people think up these days, but this wishlist item is actually a desirable product for advertisers. In a Search Engine Watch Forums thread, the possibility of creating a Google AdWords search engine is discussed, and personally, I think it's a great idea.
By now google must have a massive inventory of text ads, and growing every day. An "adwords search engine" would search this inventory and work like google - you enter a keyword and get back an SRP of all the (text) ads running on that keyword. Each ad would also show critical parameters, such as which network(s) it's running on, its geo-targeting and maybe the QS for the keyword.
The AdWords Search Engine would allow advertisers (and anyone else that's interested) to check out the worldwide ad market and competition.
That might just help you see geotargeted ads from another location and make advertising much easier.
There's a way to do it now, but it's just not very easy, according to the individual who suggested this innovation.
Limited Solution: Take keyword car as an example:
To find all ads on this keyword targeted to the United Kingdom click.. http://www.google.com/sponsoredlinks?q=car&gl=uk
To find all ads on this keyword targeted to the United States click.. http://www.google.com/sponsoredlinks?q=car&gl=us
To find all ads on this keyword targeted to London click.. http://www.google.com/sponsoredlinks?q=car&gr=GB-ENG&gcs=London
It's hard work.
Shmuel is not as hopeful.
I think it's one of those nice ideas that we'll never see.
However, I think it will make the advertising experience much easier.
Forum discussion continues at Search Engine Watch Forums.