Biographical Resources
The Complete Work of Charles Darwin Online (Darwin Online)
The website is a comprehensive collection of Darwin's publications and unpublished papers, including 43,000 pages of searchable text and 150,000 electronic images. Darwin's works are also available as free downloadable mp3 audio files. The collection also includes reviews of Darwin's works and recollections of the man. The University of Cambridge sponsors ...
Darwin Correspondence Project
The University of Cambridge and its partners have preserved 14,500 of Darwin's letters online. The letters to over 2000 correspondents are fully-searchable. Darwin used letters to collect data and discuss concepts, so the content has scientific as well as biographical significance. Each letter has footnotes to identify people and explain obscure references.