HMS Libris - An online magazine reviewing science fiction, fantasy, and historical fiction for kids and teens. - http://www.hmslibris.com/
Maniac Magee - Look at the characters, and reviews of the chapters. - http://atkinson.esu8.org/maniac/Index.htm
OOJH Book Reviews - A junior high media center site dedicated to Young Adult book reviews written by school staff, categorized by genre. Most suitable for junior high students. - http://www.sd68.k12.il.us/schools/orchard/LMC/homepage.htm
The BookHive: Find a Book - Book reviews for books in about two dozen categories and booklists for each grade up to grade six. - http://www.bookhive.org/books/
Cool-Reads - Hundreds of book reviews for 10-15 year-olds as written by 10-15 year-old reviewers. - http://www.cool-reads.co.uk/
Spaghetti Book Club - Collection of children's book reviews written and illustrated by kids for kids. Read posted reviews or submit new ones. - http://www.spaghettibookclub.org/
The Reading Corner - A place for students (grades 2-8) to find ideas for good books to read. Short reviews which give a little more information what you find in the library catalog. Has a section for young adults. - http://www.carr.org/read/
Read Up On It - Book reviews from the National Library of Canada. Includes age level recommendations and groups the books by subject. - http://www.collectionscanada.ca/read-up-on-it/