This was so good. Kind of 1984 2.0-ish, if you'll indulge me the lame slogan.
I basically agree with everything Meg said in her review. In most books of this ilk, the future scare terminology pretty firmly correlates to things from the current era, which causes a lot of eye-rolling. There is some of that here, but more often the author would drop a reference that made me stop and go "What the hell could THAT possibly be?" He's good about using a very poorly-informed narrator and the dialogue he only barely comprehends to hint at some really scary and complicated things happening far off-screen.
The ending basically killed me, and it was basically the most perfect ending possible.
Haunting and terrifying stuff. Can you imagine if I had read this as a teenager.