I haven't added new blogs to the blogroll for quite some time. I think the last one was the Newbery Project. Anyway-take a look at The Mash Up at AdLit.org: All About Adolescent Literacy. Not only does Jamie Watson review YA books, but she shares her expertise on reaching reluctant readers, technology, and recommendations of several books on specific topics.
If you're a youth services librarian, middle school/high school teacher, or parent of a tween/teen, you should also keep Adlit.org in your bookmarks-lots of great information there.