I got Cory Doctorow's "Little Brother" for Christmas.
I didn't really know much about Doctorow before I read this, apart from his appearances in XKCD, and mentions of his name in the same breath as the Electronic Frontier Foundation, so I wasn't quite sure what to expect. However the premise of the book - tech savvy kids fight back when the DHS labels them as potential terrorists - sounded intriguing.
I read the first chapter after my Christmas dinner whilst in the reading room, and the only thing that stopped me starting chapter two was The New Doctor, and A Matter of Loaf and Death.
So last night I thought I'd just read a few chapters, and then have an early night.
I finished the book at 4am this morning.
You hear the phrases "unputdownable", or "I couldn't put it down" about books all the time, but this is only the second time I've experienced it (the last time was Nick McDonell's Twelve).
I highly recommend getting this book. And if you are feeling the pinch, you can even download it for free completely legitimately.