Some useful sites and links:
Goodreads.com (social media for readers) - This site is extremely useful for following authors, looking up book summaries, and seeing what people you know are reading!
Lincoln Award (Book List chosen by students and teachers/librarians in IL) - There are many great books listed on this website, and for the motivated upperclassman, the opportunity to become a student reader is a wonderful experience and looks great on a college application. - FAQ sheet w/info for student reader
Here are some of my FAVORITE YA Books: Favorite Books