[falcolas]

You are, of course, correct. Especially in this day and age, perfect privacy is nearly impossible.

That said, you can limit your exposure. Adding all of these Google implements creates a far greater surface to lose privacy through than not using all of these Google implements.

People routinely underestimate how much can be gleaned about your from correlating such "incidental" data. Thus I feel it's important to remind them of what it can cost them.

Is the benefit worth the cost? To some, yes. To me, no. And that's why I posted this, an explanation of why I don't find this level of information gathering and correlation by a private and profit driven company acceptable.