Japanese kids & teens series

Primary emphasis is on picture books. You can see sample pages (and the full book in some cases) to check the reading level and writing style.

Website aimed at teachers, librarians, and parents to choose "quality literature" for children.

This is a general online bookstore, but it has a good search engine and will display tables of contents and summaries for books. Also, lists of movie tie-ins and other information.

Rakudokukai is a group in GoodReads that Atsuko Takahashi started to encourage Japanese language learners to read more in Japanese.

I like looking at the Kodansha Book Club because I can read samples of texts 試し読み, read reviews, and see what has been released recently.