One of the better explanations of the Google approach I've read. Google aims to shape the market to their benefit, to create new markets. They think not so much in terms of products as how those products will affect the existing structures.
For one- I would like to see you connect buying radio stations to using the internet `for longer time.` And for two- I would be shocked if Google's only business model was "Create things which will force people to look at more of our ads".
On a similar side-note. Youtube has very little advertisement- especially compared to sites like Megavideo and Hulu (kinda not related). So advertisement must not be the number one priority always. (Advertisement on youtube is a recent addition too if I am correct.)
> And for two- I would be shocked if Google's only business model was "Create things which will force people to look at more of our ads"
is not an argument.