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Hey Jbendiner, Unfortunately, we are currently only able to provide Bing search volume because Google does not allow us access to their AdWords API. The search engine you select will be used to provide you with the top sites that are ranking for the keyword you are research, so you will see results ranking results for Google when you choose that search engine but you will only every see Bing search volume. The search volume is not used to calculate the keyword difficulty score and it is just used to provide supplemental information about how many users may be search a particular term in general. I hope this clears things up. Please let me know if you have any other questions. Chiaryn Help Team Ninja