[runjake]

The difference is with Amazon you're the customer, and the device and content are the products.

Funny, my Kindle has ads. I believe you mean IF you pay the $15 extra, and for all I know is that $15 allows you to turn off ads. As far as I know, it doesn't preclude Amazon from selling your information and choices to third parties. Someone correct me if I'm wrong.

[Johngibb]

You still paid for the device generating revenue directly to Amazon. The ads are just supplementing a discount on the product. Google is not making money off of the Android devices they don't sell, although it is changing as they start building and selling their own hardware.