C-SPAN
C Span American Writers: Upton Sinclair and Muckrakers
A companion to C-SPAN's series, this site features a brief biography of Upton Sinclair, the text of his influential book, "The Jungle," and links to information about the Chicago Stockyards, as well as to other sites about Sinclair and...
Penguin Publishing
Penguin Random House: "The Jungle" Teacher Guide
Get chapter-by-chapter comprehension questions, discussion questions and ideas for extending the study of the novel beyond the text. Also includes some background information about the author and novel.
Authors Calendar
Author's Calendar: Upton Beall Sinclair
Biography, selected publications, and a list of further reading.