john1975 - 7:23 am on May 5, 2010 (gmt 0)

Please be assured that google know what they are doing and whatever they do will not affect their adwords revenue. The supermarket example doesn't really make sense cos in a supermarket you would be looking for the same products every week. Don't tell me that you keep searching for the same term on google every week unless it is a specific website you're looking for - in that case you just type the name.