Google makes, quite literally, billions of dollars off the bottom of the barrel.
There is a dark iceberg under the consumer Internet. Online pharmacies. Rebill scams. "Government grant" applications. High interest loans. Educational institutions of dubious utility (disclaimer: took one's shilling once, indirectly, and regret it a bit). Spam, scams, and the like, on a massive scale.
There is a UI for AdSense publishers where some Google PM made the decision "If we give them options to tart up their website less, let's tell them how much money it costs."
There is a dark iceberg under the consumer Internet. Online pharmacies. Rebill scams. "Government grant" applications. High interest loans. Educational institutions of dubious utility (disclaimer: took one's shilling once, indirectly, and regret it a bit). Spam, scams, and the like, on a massive scale.
There is a UI for AdSense publishers where some Google PM made the decision "If we give them options to tart up their website less, let's tell them how much money it costs."
http://www.seobook.com/how-make-easy-money-google