Kristen Cashore (of the inimitable Graceling and Fire, and the forthcoming (squee!) Bitterblue), posted a link to this from Tui Sutherland, whose blog I hadn't read before. That post has some fabulous stuff in it, both as Christmas gift ideas and just good reads, and I may or may not have run out and made myself an impulse buy based on it.
I know Tui through a friend and she's very cool--I can't believe I hadn't found her blog before. She's the author of a bunch of books for young readers and young adults, which you should check out!
Anyway, I know it's last minute, but a good book is a great gift. Merry Christmas!