goodreads:  "Goodreads is the world’s largest site for readers and book recommendations." Free sign-up. Caution:  Advertising.

Book Series In Order:   "provides the book series in order by author, and/or in order of the character or series. Where applicable, they provide you with both the publication order of the books written, as well as the chronological order of the books." Caution:  Advertising.

Epic Reads:  "Find the hottest teen books, connect with your favorite YA authors", videos, giveaways, polls, trending books and more. From HarperCollins publishing.

no flying no tights: Graphic Novel reviews for all genres. Comics, Manga, Anime and more.

Penguin TEEN:  "Find the best books for teens and fans of young adult literature, connect with authors, get custom reading recommendations," quizzes, tours, and events. From Penguin Random House publishing.

Riveted by Simon Teen:  Free eBooks & reads, quizzes, discover new books, videos & chanes to win new & upcoming releases.

Teens' Top Ten: "Teen choice" list, where teens nominate and choose their favorite books of the previous year! Includes book trailers and lists.