Below are a list of sites that have book recommendations for third graders.
Favorite Books for Third-Graders http://greatschools.org/cgi-bin/showarticle/625
Goodreads- Popular Third Grade Books http://goodreads.com/shelf/show/3rd-grade
New York Public Library http://kids.nypl.org/book-lists/third-grade
Slideshare books http://slideshare.net/awollenberg/3rd-grade-book-recommendations
For reluctant boy readers http://guysread.com/
Scholastic “Just Right Book” Title Search
Use the link for the book wizard below to search for just right books for your child.
Here is a great place to find a list of great reading apps for iPads, itouches, or iPhone.