Basically everything on wiki and google came from books, but not everything in books is on wiki and google... so its just a mathematical fact that wiki and google are inferior to books. Asking a question on a forum gives you the chance to speak with someone who knows things that aren't on the internet. Unfortunately, most forums are spammed up by trolls who just want to argue all day, and don't have anything valuable to contribute.
Not everything you google comes from books. For example http://en.wikipedia.org/wiki/Treaty_on_the_Adoption_of_the_Republic_of_Crimea_to_Russia#Treaty
So your statement is false.
gooooogle