The Perspectives of Nietzsche
- A series of quotes, aphorisms and excerpts organised under concepts for which Nietzsche has become famous, such as "Will to Power".
- http://www.pitt.edu/~wbcurry/nietzsche.html

Also Sprach Zarathustra
- Interpretative summary of the work.
- http://huizen.daxis.nl/~henkt/also-sprach-zarathustra.htm

Theory of Knowledge
- Brief essay on the philosopher's epistemology, comparing it to Ludwig Wittgenstein and Thomas Kuhn.
- http://huizen.daxis.nl/~henkt/nietzsche-theory-of-knowledge.htm

Free Online Library - Thus Spake Zarathustra: A Book For All And None
- Details Nietzsche's views and philosophies as told through Zarathustra, who has come down from a mountain in order to offer his wisdom to the world.
- http://nietzsche.thefreelibrary.com/Thus-Spake-Zarathustra

Thoughts Out Of Season
- E-text, Part One.
- http://www.ibiblio.org/HTMLTexts/Friedrich_Wilhelm_Nietzsche/Thoughts_Out_Of_Season_Part_One/

The Prejudices of Philosophers
- The first chapter of Nietzsche's 1885 work Beyond Good and Evil. As translated by Helen Zimmern.
- http://www.marxists.org/reference/subject/philosophy/works/ge/nietzsc1.htm

Twilight of the Idols
- E-text of the Kaufmann/Hollingdale translation.
- http://www.handprint.com/SC/NIE/GotDamer.html

Thus Spoke Zarathustra
- Audiobook downloadable for free in mp3 format.
- http://www.audiobooksforfree.com/download/default.asp?refnum=1000079

Thus Spake Zarathustra
- E-text of several versions from Project Gutenberg.
- http://digital.library.upenn.edu/webbin/gutbook/lookup?num=1998

On the Use and Abuse of History for Life
- E-text of the Johnston translation.
- http://www.mala.bc.ca/~johnstoi/Nietzsche/history.htm

The Antichrist
- E-text of the Mencken translation.
- http://www.fns.org.uk/ac.htm