Just read it - it was mentioned by James Sturm in Offline, his column about giving up the Internet. Or maybe it was Nicholas Carr, author of The Shallows. I can't remember.
The 'feed' of the title is the internet feed reader everyone has implanted in their brains in the future. This is relevant to my interests of late in this our Digital Age.
I am favorably impressed and recommend it to anyone who likes speculative fiction in general, YA scifi and dystopia fiction specifically.
I'll post some of my reactions in the comments so as not to spoil the book.
Feed, by M.T. Anderson