Bartleby.com: Walt Whitman: Searchable works, quotations, small portrait. Also a chapter on Whitman from a history of American literature

Henry David Thoreau (1817-1862): A Guide to Resources: A concise, simple directory to resources on Thoreau and his classics including Walden, Civil Disobedience and Walking, plus resources on Transcendentalist authors, philosophy and literature

Leaves of Grass: The complete online HTML text, extensively annotated, with references cross-linked to the Encyclopedia of the Self

The Walt Whitman Hypertext Archive: E-text of works, letters, biographical materials, and contemporary reviews