Henry David Thoreau (1817-1862): A Guide to Resources
http://www.transcendentalists.com/1thorea.html
Collection of links to biographies, portraits, cybertexts of all of Thoreau's works, commentary, analysis, and biography on the Net.
Ecology Hall of Fame: Henry David Thoreau, 1817-1862
http://www.ecotopia.org/ehof/thoreau/bio.html
Brief biography of Thoreau, with links to extracts from his works, a bibliography, and web links.
Walden by Henry David Thoreau
http://xroads.virginia.edu/~HYPER/WALDEN/walden.html
Complete online hypertext of Thoreau's Walden.
Study Text of Walden
http://www.vcu.edu/engweb/transcendentalism/authors/thoreau/walden/
Online critical edition of Walden, with comprehensive notes on the various literary allusions, historical circumstances, and ind-depth analysis of the text.