ALMOST ALL OF DARWIN ONLINE
 

http://darwin-online.org.uk/

"Most of these materials are online ... for the first time such as the 1st editions of Journal of Researches, Descent of Man, Zoology, and all six editions of the Origin of Species...There are newly transcribed manuscripts such as Darwin's Beagle diary, field notebooks and complete images of his early theoretical notebooks..."

"An enormous quantity of materials are still to come: more editions, translations, introductions, notes and thousands of manuscripts. Assistance with scanning, proof reading or transcribing is warmly welcomed."