Comment by int_19h

Directly working. But then you have all the vehicles that, in the grand scheme of things, exist solely to enable ads and make data mining for them easier, such as Chrome and Android. Then there are products that exist primarily to lock you into the Google ecosystem so that you're forced to interact with the rest of it.

At the end of the day, if most of company's income is from ads, it can be safely assumed that whatever else it does is somehow about ads even if it doesn't contribute directly. Well, or else Google is incredibly inept.