Biodiversity Data Sourcebook - 140 pages of tabular data with supporting text and graphics, on global biodiversity. Topics are covered in a concise way, using tables supported by minimal text and graphics. They include country species diversity, threatened species, national Red Data Books, major food crops, domestic livestock, marine resources, tropical forests, protected areas and systematics collections. (FTP site).
ETI - World Biodiversity Database - A continuously growing taxonomic database and information system that aims at documenting all known species.
Fauna Europaea - Will assemble a database of all European land and fresh-water animals.