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I use Google UK and today noticed something rather wierd. I tried a search for a 'service A London', then tried another one for 'service B London'. Some of the PPC ads were for service A! Then I searched again for 'service A London' and some of the ads were for service B!
I got a friend at a different location to check this. They found the same thing until they switched back to 'service A London' - that time everything was correct.
I still see this right now as of posting. It doesn't matter what service I use, ads from the last service are being displayed.
I'm not logged in. I'm using the UK results only filter.
Anyone else seeing this?
But this is a very strange report. Have you tried the experiment with cookies turned off?