Existentialist1844 started a thread called What's on your bookshelf?. It made me wonder what links you know of to books that are available online. Although I prefer to read books on actual paper, the digital versions are so much easier to look particular parts up on. This thread is meant to give links for that purpose to resources.
The most obvious one is Project Gutenberg. It contains copies of more than 28,000 books. They are all out of copyright, so you won't find any recent publications, but the library is great for classics. Project Gutenberg also maintains sites for books originally written in French, German and other languages.
The Complete Work of Charles Darwin, including all six separate editions of Origin of Species.
Marx/Engels Collected Works. Not complete, and caveats apply, (see introductory note) but quite extensive.
The Athenaeum Library of Philosopy. Again, mostly out-of copyright material
A Russian site that contains excellent copies of nine of Richard Dawkins' books, including The God Delusion and the latest edition of The Selfish Gene. Use <Ctrl-F> and "Watchmaker" (don't use the quote marks) to get to them. I don't know if Dawkins would be pleased about this, although I'm sure he must know about it.
Speaking about books the copyright of which has not run out yet, I have found full copies of all five volumes of Douglas Adams' Hitchhiker trilogy.
What can you contribute?
