More lists for all you list lovers! You'll find another good list of lists at SCC English, the blog of the English department at Dublin's St. Columba's College. The SCC list o' lists is geared toward books for adults.
100 Scope Notes At this fine blog, new to School Library Journal's roster, two school librarians choose the best of the year.
Amanda Craig. A best list from the Times' (UK) children's book critic.
Atlantic Wire. YA/Middle-Grade Book Awards.
Booklist's Editors' Choice selections.
Ireland's Gutter Bookshop list includes books for children.
Morris Award finalists. Prize honors YA books by debut authors. Winners announced in January.
MotherReader. She knows her picture books.
Smithsonian.com's Top Books of 2012. Not a list of children's books, but plenty of good gift ideas for teens and grown-ups.
Vogue. Good list of books for adults. (My first job out of college was at Vogue. I learned a lot there!)
You'll find many more at Chicken Spaghetti's page "The Best Children's Books of 2012: A List of Lists and Awards."