I could only make it a couple of pages in. Just too boring.
It is an interesting read as to how google is constantly improving their system for accurate results.
What I would like to see is the addition of terms to use to specifically eliminate types of sites.
Something like -sale -buy or -price that I can use so that when I am trying to find a solution to fix a computer, car, appliance etc... I do not end up getting a whole bunch of retail sites trying to sell me something. When all I want is information.