I seriously don't think 2nd graders have read 1984 and if they did, they are far from having understood any of it. They probably think O'Brien is the good guy.
I just think some people do tend to go overboard with the "Google = big brother". They think Big Brother is about data collection, that's a big mistake. The book isn't about how our lives are monitored, it's about a society where information is controlled, thoughts are controlled are independant thought is prohibited.
It's pretty much like the people here that say "Macrumors is a fansite! What we say is what everyone should think". That's a form of "Big Brother"-ism. What Google is doing is simply what every ad agency has done forever, in a much more effective way. In the end, it gives them no control over you.
That's why I think the parallele is hyperbolic and really bad for Orwell's work. It diminishes it. Just like Godwin's law for Nazis. No matter what you compare them to, you're diminishing the movement. Nothing is as bad as that regime. Heck, we should have Godwin's law 2, for when someone calls a corporate entity "Big Brother". Same rules should apply. Thread has ended and the party that brought it up loses the argument instantly.
I think the topic is pretty much done by page 2 of every thread around here.
What more is there to add really ? Google got fined after Google bypassed privacy settings. Done and over, they don't anymore.