Here is a link to a paper that did in depth analysis of the information Google collects from your Android device and from the Google Chrome browser. In effect, Google collects absolutely everything. Google knows when you have been walking versus jogging versus bicycling versus driving.

If you are interested in what corporations are collecting about you, and how they use that to discern attributes about you, you should read this paper.

Source: Microsoft Word – Google data collection paper – FINAL-v2.docx – DCN-Google-Data-Collection-Paper.pdf

I ran Google Maps on my Android phone today and noticed that as I move around inside my house, Google is tracking my location inside the home. This was a bit of a surprise. Presumably, Google knows which room has my office, were the dining table is located, and even when I am going to the bathroom. The creepiness of this invasive spying is unsettling.