I will say: this book has an awesome ending. I think it's the ending that blessed it with three stars, because I love powerful and beautiful endings.

So, I liked about half of this book. Approximately half of it was written in first person, in the voice of the internet AI, Webmind, that emerged in the first book of the series. He is fascinating. The character - a sentient, non-human consciousness - is very well executed and Sawyer managed to make the first-person voice surprisingly realistic. The other time is spent in third person, following mostly our other protagonist, Caitlin Decter. Caitlin is 16 years old, used to be blind (and is now not, thanks to a retinal implant), is obsessed with math and losing her virginity, and way too forced to be a believable character.

To put it one way:
I liked Webmind. I despised Caitlin Decter. I had more compassion for the "bad guys" in this book than Caitlin and her family, for the most part. Towards the end of the book, there's this incredibly forced scene in which Caitlin sees her best friend, who she's apparently been ignoring for the past 20 days, and really, it just shows how little Sawyer knows about teen culture. Throughout the book, we realize just how little he knows about internet culture, as well. "'Seekrit' is how some people my age spell 'secret' online," Caitlin proudly announces at one point. I mean, really? We couldn't figure that one out ourselves? In addition, Caitlin is pushy, spoiled, and Sawyer has given her some sort of super-feminist attitude (I'm never getting married! I'm never having children! I want to lose my virginity before I'm 16.4 because statistics say that everyone else is doing that too!) (and no, none of that is an exaggeration). Her mother is staunchly liberal and tells her daughter that she believes in abortion because she had one when she was irresponsible as a teenager. Webmind, interestingly enough, points out that a human fetus might should be recognized as a person with rights, too. Wow, that's a new idea. And then anytime Caitlin's boyfriend is around, we get to witness her being pushier, bossier, and domineering. What fun.

Aside from my complete and utter disgust at the stupidity and repulsion of the main human character, my love for the concept of Webmind and all that entails makes me actually like the book. Sawyer presents interesting moral dilemmas and theories, as well as a lot of logic puzzles or other philosophical ideas, like Game Theory, that interest me quite a bit. Although, one of the main questions, Would the world be a better place with something/someone of no political value watching? made me laugh a little. That is the idea of a God, right?
(In the book, Webmind made it very clear that he was not God, and much of the book promotes atheism, other than "wishing well" the people who are religious.)

So yeah. two stars, initially, because I only *sorta* liked it. The ending, though, kicked it up a notch. If you've read the first couple, obviously, read the third. If you like interesting ideas of AI, start the series, but beware of obnoxious teenagers.