Websites
Dive into the Poetry Foundation's bio (and linked poems) of Levertov.
Her biography at Poets.org, with links to even more poems.
Here's more on the movement that Levertov found pretty darn inspiring.
Video
Levertov reads six poems.
See 200,000 people march against the war. That's… quite a crowd.
See the poem set to song and images (and grab a tissue).
Audio
Hear the poem read aloud.
Images
Here she is, the poet herself.
Here's TIME's image gallery of the Vietnam War—powerful stuff.
Here are some of the most iconic photos of the war; they helped catch the attention of the world.
Articles and Interviews
Dig this piece on Levertov and other anti-war poets.
The poet discusses craft and… other poetic stuff.
Stayin' alive—this article revisits and revives Levertov's work.
Books
Read all about her life and works.
All her poems in one place—yup, this is a big one.