The Alabama Learning Exchange is a great place to search for lesson plans. Here are 2 examples:
Scholastic allows you to search for lesson plans and activities by grade level, book title, etc. Here are 2 examples:
A to Z Teacher Stuff organizes literature activities by category (title, author, etc.). Here are 2 examples:
Carol Hurst's Children's Literature Site lists children's books and related activities. Here are 2 examples:
On this site, users can search by keyword, grade level, and/or learning objective. Here are 2 examples:
While the ALA does not publish lesson plans, on this page they list awards given to authors and titles of children's literature and this is a great place to find high-quality books for lesson planning. Some of the most influential and popular awards for children's literature include the following: