- google doesn't know if people are active on non-google sites - I don't have numbers, but I know that the overwhelming majority of sites I see in a given day,

- google doesn't know if people are active on non-google sites - I don't have numbers, but I know that the overwhelming majority of sites I see in a given day, week, or month use google analytics. A helpful 'free' tool that gives site owners excellent stats, and gives google insights into almost all of the off-google browsing that happens...