Probably my favorite book so far this year is Corey Doctorow's "Little Brother," followed by Sherman Alexie's "Diary of a Part-time Indian."
Savvy, smart, cutting edge, and edge of your seat - I loved this read. Cool thing is, Corey Doctorow is all about open-source. So, you can actually download the book for free from his website, although I prefer holding it in my hot little hands. At his website you can also view him reading some excerpts of "Little Brother."
He said some really nice words about writing Young Adult fiction recently in this article for LOCUS online.
Add to that he's got a page in my latest obsession: facebook. Gotta luv this guy!