Language Arts

Funbrain

Vooks

PBS Reading Games

Starfall 

Storynory

ABCmouse

Raz-Kids

ReadingIQ

Reading Bear

Splash Learn

ABCYa 

Read Works

PebbleGO by capstone

CommonLit

Read Theory

Daily Writing Prompts

Spelling City

Free Rice

Story Time From Space

Bookshare

Storyline Online

epic!

Carol Hurst's Children's Literature Site

Fact Monster

DOGOnews

Reading Rockets

Oxford Owl

Story Place - The Children's Digital Learning Library

International Children's Digital Library (from the University of Maryland)

Tumble Book Library