ASCII etext, and sales of E-Book.
http://www.textlibrary.com/TITLE/origin/index.htm
The Origin of Species by Charles Darwin
A searchable online version of The Origin of Species.
http://www.online-literature.com/darwin/originofspecies/
On the Origin Of Species
Etext of Darwin's Origin of the Species, complete with discussion forum and live chat.
http://jollyroger.com/library/OntheOriginofSpeciesbyDarwineb
ook.html
