The Biodiversity Heritage Library contains many books and archives on global biodiversity. Full text of rare and early publications relating to Western Australia is available.
The National Geographic Virtual Library contains a digital reproduction of articles and photos from all National Geographic publications documenting life on our planet with articles on culture, global events, nature, science, technology, exploration, discovery and the environment.
Open Library collects details of published books. It also holds loanable copies of ebooks including some about or from Australia. It makes audiobooks available to print for disabled people.
Project Gutenberg is an online library of free eBooks. It largely contains books that are in the public domain. These have been digitised by volunteers.