The Hopkins Archive
https://www.gerardmanleyhopkins.org/
An online archive of primary and secondary documents, lectures, recordings, and criticism pertaining to Gerard Manley Hopkins’s life and work
"Back to Basics: How Gerard Manley Hopkins remade English Poetry"
https://www.newyorker.com/magazine/2009/05/11/back-to-basics-2
A biographical and literary study of Hopkins published in the New Yorker by poet and literary critic Adam Kirsch
A Recorded Reading of "The Windhover"
https://www.youtube.com/watch?v=jz1ZHccoTms
An actor reads Hopkins' sonnet "The Windhover" aloud. Worth listening to in order to fully experience the rich soundscape of the poem.