You may be interested to read this Guardian piece on Wallace Online, a web project directed by John van Wyhe, the historian behind Darwin Online. You can find the article at: http://www.guardian.co.uk/science/2012/sep/27/recognition-alfred-russel-wallace-darwin.
Wallace's work on the theory of evolution through natural
selection, along with major insights into biodiversity, are
described in thousands of pages of books, articles, drawings and paintings, which have now been made available via Wallace Online http://wallace-online.org/.