The Poetry Foundation is the publisher of Poetry magazine, an award-winning publication that works to raise poetry to a more influential level in contemporary life.

Poets.org is produced by the Academy of American Poets. They launched the website in 1996 as the first online source for poetry for all ages, as well as resources for teachers K-12.

Owlcation is a website created by experts on topics that range from literature to history and biology.

Shmoop markets itself as a platform that “moves education forward.”

CliffsNotes defines itself as the “original” and “most widely imitated” study guide.