Some useful links to investigate:

AWARD WINNING TITLES

• Belpre Medal
• Caldecott Medal
• Geisel Award
• Newbery Medal
• Sibert Medal

HELPFUL REVIEW SITES

• American Association of School Librarians
• Common Sense Media
• Horn Book
• National Public Radio Children's Books
• Nerdy Book Club
• New York Public Library Best Books for Kids
• School Library Journal

LIBRARIES & ARCHIVES

• Huntington Library
• Library of Congress
• National Archives
• Online Archive of California
• Pasadena Public Library
• Sierra Madre Public Library

POETRY

• Academy of American Poets
• Library of Congress Poetry & Literature Center
• Poetry Foundation

READING BLOGS

• Great Kid Books
• Kid Lit Frenzy
• The Nonfiction Detectives

CODING

• Scratch
• TinkerCad

COOL WEBSITES

• Cool Math Games
• ABCYA 
• BrainPOP
• BrainPOP ELL
• National Geographic Kids
• PBS Kids
• Wonderopolis