It amazes me how much money businesses just throw at Google with little to no insight into how it all actually works. As far as I can tell, it really is mostly

It amazes me how much money businesses just throw at Google with little to no insight into how it all actually works. As far as I can tell, it really is mostly based on faith and trust in Google. There is no obvious way to really verify what is actually taking place behind the scenes on the back end. Maybe you're getting what you think you're paying for or maybe you're not. Only Google knows for sure. It is all rather opaque --- but who cares, just keep those ad dollars flowing.