Links
Books
Teen Reads - www.teenreads.com
Smart Girl - www.smartgirl.com
Citations
If you need help with citations for your bibliography page check out the following:
Comics/Manga
Mahshelf is a social network for digital comics, manga and every kind of graphic novels (or books with lots of images). Here you can create your own Library and publish your own online comics, manga or graphic books to share with friends and family. - www.mahshelf.com
General
Health
Teen Health - http://kidshealth.org/teen