Search Engine Watch Forums moderator Discovery, started a thread at Search Engine Watch Forums saying he noticed an unusual amount of traffic from Google's content network to his sites that are geo-targetted to the U.S. and English only group.
#1 - The website is from Canada
#2 - The website is under construction
#3 - The website language is in French
#4 - There is NO CONTENT other than a page that says its under construction in French!
#5 - Our campaigns are limited to the U.S. only.
#6 - Our campaigns are limited to English only.
Long time member, Mel66, also said he has been noticing an increase of international traffic via AdSense for his geo-targetted campaigns.
I've been seeing Adwords clicks from places like Peru in the past couple days. It hasn't been a large number, and with today's $10 fiasco I haven't had time to investigate it - but, like you, we're set to US only so we shouldn't be getting these clicks.
Others in the thread seem to see the same thing as well.
Forum discussion at Search Engine Watch Forums.