Me? I’m immersed in Google services, but I worry that handy new features will arrive in a steady stream of minor changes that are all but imperceptible until one day I wake up and realize that Google has access to everything that makes me who I am.

Advertising has been good to Google. But as the company becomes more than a search engine, it’s got a choice to make about its revenues in the future: should it emphasize selling services rather than selling advertising?