.Hudson River School (PowerPoint; best seen with Internet Explorer)
Frank Gado's excellent and extensive biographical sketch and portrait at poetryfoundation.org 
Photograph
of Bryant from the Smithsonian Portrait Gallery
Information
and questions from the Heath Anthology site.
The William
Cullen Bryant Homestead site includes a picture of Bryant's house.
Bibliography
and study questions from Paul Reuben's PAL site.
Kindred Spirits, a picture of William Cullen Bryant and Thomas Cole by Asher B. Durand (1849). Original at the New York Public Library. Image courtesy of Sandra Hildreth's NEH-supported Hudson River Paintings site (site no longer available).
Poems
in HTML format from bartleby.com
Poems (1840) at Project Gutenberg
Poems.
Searchable database of the entire 1840 edition at the University of Michigan.
Selected poems from this collection available from the link above, including the following:
THANATOPSIS.
See all selections from the Michigan MOA project on Bryant.