Oh, Scott Westerfeld, I get it. Everyone loved Uglies (myself included). Everyone wanted more Uglies. So you said, ok, I'll write this fourth book of the Uglies trilogy. But in your heart, I bet you were done with Uglies, and it shows in Extras.

It has some cool ideas, for sure--the Twitter-like reputation economy is intriguing--but I was never able to buy into it the way I could the Uglies world. And the whole mess with the Extras? Uhhh jeeze I don't know.