ogletree - 9:47 pm on Feb 12, 2013 (gmt 0)
Google looks at your language setting. If you are located in Russia and go to www.google.com you will get Russian ads by default. Google has set a default language for each IP. You have to go in and change your google settings if you do not want that language. For the most part Google detects what language most people speak and serves them ads in their language if ads exist in that language. So if you go to a regional google from the US you will still be on an english IP and still get english ads.