The best way to take over your world is by taking over the things that you use to see, hear and talk with each other. This reminds me of the Great Firewall of China. I mean, most people are navigating the Internet through the filter called Google anyway.
How much power do they have on information control, in other words, is it really "what you see is what you get" (WYSIWYG)?
How about those that you cannot see?