I like the related materials at the end, particularly the layperson's description of their facial recognition tech https://www.google.com/policies/technologies/pattern-recogni...

I'd like to think I'm so savvy that nothing in that Privacy document would surprise me. But I haven't really read the whole thing. It'd be a good class assignment to make students read the policies of major services and write down what they were most surprised by, just to get a sense of how technically savvy they are.