The magazine publishers will just end up using tracking links on not just the ads but the content too. If they use a redirect through a page that has doubleclic

The magazine publishers will just end up using tracking links on not just the ads but the content too. If they use a redirect through a page that has doubleclick tracking pixels and whatnot, they'll claw back some significant demographic data. If they launch their own apps instead of going through Apple's iBooks, they could fingerprint the hardware, show rotating/targeted ads, and even ask bullshit survey questions too.