[JoeP]

You know how you get a rush of adverts for a thing after you've browsed for it? The "no, Google, I bought a toilet seat, I didn't develop a passion for collecting them" syndrome.

What about getting a rush of ads for thing somebody else has browsed for?

Little Miss JoeP needs a place to live when she starts her new job in Other Town. And lo ... I started getting ads from Zoopla (annoying but useful lettings and estate agent site). Not generic ads either, but specific ads for studio flats in Other Town. Including the very one that she has since rented.

She's also buying a second hand car. So I'm getting ads for car comparison sites. I haven't done any searches for cars or flats/houses for 2 years.

Clearly Google's ad backend (I presume this is Google driven as I'm seeing them in things like Android games) has worked out that we have some kind of connection. Probably thinks we are married.

Privacy? Nope. Anonymity? Nope. Share your browsing habits with probable family members in a creepy way? Sure.